public class MultiColumnTreeView : ScrollControl, IDisposable, ICancelModeProvider, ISplitterPaneSupport, IScrollBarWrapperContainer, ISupportUpdating, ISupportIntelliMouse, IQueryFocusInside, ISupportInitialize, IThemedControl, INonClientPaintingSupport, IProvideCustomContextMenuPositionalInformation, IDragDispatcher, ISuppportHistory, IThemeProvider, IVisualStyle

Constructors

MultiColumnTreeView()

Initialize a new instance of the MultiColumnTreeView class.

Declaration

public MultiColumnTreeView()

Properties

ActiveNode

Gets or sets the node of TreeNodeAdv.

Declaration

public TreeNodeAdv ActiveNode { get; set; }

Property Value

Type	Description
TreeNodeAdv

AddSeparatorAtEnd

Gets or sets a value indicating whether the GetPath(String) method adds a separator at the end of the path string returned.

Declaration

public virtual bool AddSeparatorAtEnd { get; set; }

Property Value

Type	Description
System.Boolean	Default is false.

AllowDropStubWorks

Declaration

protected bool AllowDropStubWorks { get; set; }

Property Value

Type	Description
System.Boolean

AllowIncreaseSmallChange

Gets or sets the value of increasing small changes.

Declaration

public override bool AllowIncreaseSmallChange { get; set; }

Property Value

Type	Description
System.Boolean

Overrides

ScrollControl.AllowIncreaseSmallChange

AllowKeyboardSearch

Gets or sets a value indicating whether keyboard based searching should be allowed.

Declaration

public virtual bool AllowKeyboardSearch { get; set; }

Property Value

Type	Description
System.Boolean	Default value is true.

Remarks

When set to true, the users can key in char keys to browse to the next node that begins with that character(s). Multiple characters entered in succession will be assumed to be part of the same word, so search will be performed on that substring. Search will be restricted to IsVisible and Expanded nodes.

AllowMouseBasedSelection

Gets or sets a value indicating whether multiple nodes can be selected with mouse down and drag.

Declaration

public virtual bool AllowMouseBasedSelection { get; set; }

Property Value

Type	Description
System.Boolean	Default value is false.

AutoAdjustMultiLineHeight

Gets or sets a value indicating whether to recalculate height of nodes for proper multi-line text displaying.

Declaration

public bool AutoAdjustMultiLineHeight { get; set; }

Property Value

Type	Description
System.Boolean

AutoControlsAdding

Declaration

protected bool AutoControlsAdding { get; set; }

Property Value

Type	Description
System.Boolean

AutoGenerateColumns

Gets or sets a value indicating whether to generate the columns automatically or not. The MultiColumnTreeView will creates columns automatically based on the property AutoGenerateColumns.

Declaration

public bool AutoGenerateColumns { get; set; }

Property Value

Type	Description
System.Boolean

AutoSizeMode

Gets or sets the value that indicates how the column widths are determined.

Declaration

public AutoSizeMode AutoSizeMode { get; set; }

Property Value

Type	Description
AutoSizeMode

BackColor

Gets or sets the back color.

Declaration

public override Color BackColor { get; set; }

Property Value

Type	Description
System.Drawing.Color

BackgroundColor

Gets or sets the background color, gradient and other styles.

Declaration

public BrushInfo BackgroundColor { get; set; }

Property Value

Type	Description
BrushInfo

Remarks

The MultiColumnTreeView provides this property to enable specialized custom gradient backgrounds.

BaseStylePairs

Gets a collection of base style pairs used in the tree.

Declaration

public StyleNamePairsList BaseStylePairs { get; }

Property Value

Type	Description
StyleNamePairsList

BaseStyles

Gets a collection of base styles used in the tree.

Declaration

public virtual Hashtable BaseStyles { get; }

Property Value

Type	Description
System.Collections.Hashtable	A Hashtable of style names versus styles. The style names are of type string and the styles are of type TreeNodeAdvStyleInfo.

Remarks

This collection holds the standard style that specifies the global node settings for all the nodes (is named "Standard"), the node level styles for nodes at specific levels (should use the convention "NodeLevelX") and other custom base styles. Also when you specify a style named "DragNodeCueStyle" that style will be applied on the nodes before preparing the drag-cue bitmap during drag-and-drop, a feature that can be turned on using the ShowDragNodeCue property.

BeforeTouchSize

Gets or sets Control size before touch enabled.

Declaration

public Size BeforeTouchSize { get; set; }

Property Value

Type	Description
System.Drawing.Size

Border3DStyle

Gets or sets the style of the 3D border.

Declaration

public Border3DStyle Border3DStyle { get; set; }

Property Value

Type	Description
System.Windows.Forms.Border3DStyle	One of the Border3DStyle values. Default is Border3DStyle.Sunken.

BorderColor

Gets or sets the color of the 2D border.

Declaration

public Color BorderColor { get; set; }

Property Value

Type	Description
System.Drawing.Color

BorderSides

Gets or sets the border sides of the control that will be drawn.

Declaration

public Border3DSide BorderSides { get; set; }

Property Value

Type	Description
System.Windows.Forms.Border3DSide	One of the System.Windows.Forms.Border3DSide values. Default is Border3DSide.All.

BorderSingle

Gets or sets the 2D border style.

Declaration

public ButtonBorderStyle BorderSingle { get; set; }

Property Value

Type	Description
System.Windows.Forms.ButtonBorderStyle	One of the System.Windows.Forms.ButtonBorderStyle values. Default is ButtonBorderStyle.Solid.

BorderStyle

Gets or sets the border style of the control.

Declaration

public BorderStyle BorderStyle { get; set; }

Property Value

Type	Description
System.Windows.Forms.BorderStyle	One of the BorderStyle values. Default is BorderStyle.Fixed3D.

CanApplyTheme

Gets or sets a value indicating whether a SkinManager theme style has been applied to the control.

Declaration

public bool CanApplyTheme { get; set; }

Property Value

Type	Description
System.Boolean	The default value is true.

CancelEdit

Declaration

protected bool CancelEdit { get; set; }

Property Value

Type	Description
System.Boolean

CanDrag

Declaration

protected bool CanDrag { get; set; }

Property Value

Type	Description
System.Boolean

CanGetDragImage

Declaration

protected bool CanGetDragImage { get; set; }

Property Value

Type	Description
System.Boolean

CanOverrideStyle

Gets or sets a value indicating whether control elements styles can be overridden by theme style settings.

Declaration

public bool CanOverrideStyle { get; set; }

Property Value

Type	Description
System.Boolean	Default value is false.

Remarks

By default, the control's element styles will not be overridden by theme style settings if the style is set in sample level. If this property is enabled, element style will be overridden by theme style settings event if it is set in sample level. This property should be enabled or disabled before calling the ThemeName property of the control.

CheckedMember

Gets or sets a value indicating the field to populate the state of checkbox of TreeNodeAdv in MultiColumnTreeView.

Declaration

public string CheckedMember { get; set; }

Property Value

Type	Description
System.String

CheckedNodes

Gets the checked nodes of the MultiColumnTreeView.

Declaration

public CheckedNodesCollection CheckedNodes { get; }

Property Value

Type	Description
CheckedNodesCollection

ChildMember

Gets or sets a value indicating the child data field which behaves as a Child Node in MultiColumnTreeView.

Declaration

public string ChildMember { get; set; }

Property Value

Type	Description
System.String

ClickedOnSelection

Declaration

protected bool ClickedOnSelection { get; set; }

Property Value

Type	Description
System.Boolean

ClientHeight

Declaration

protected int ClientHeight { get; }

Property Value

Type	Description
System.Int32

ClosedImgIndex

Gets or sets the StateImageList index value of the image that is displayed when a tree node is collapsed.

Declaration

public virtual int ClosedImgIndex { get; set; }

Property Value

Type	Description
System.Int32	An index into the StateImageList. Default is 1.

CollapsedNodes

Gets the collection of Nodes which are in Collapsed state. Result is calculated on reach call.

Declaration

public TreeNodeAdvCollection CollapsedNodes { get; }

Property Value

Type	Description
TreeNodeAdvCollection

Columns

Gets or sets the columns of the MultiColumnTreeView.

Declaration

public virtual TreeColumnAdvCollection Columns { get; }

Property Value

Type	Description
TreeColumnAdvCollection

ColumnsHeaderBackground

Gets or sets the background color, gradient and other styles for column's headers zone.

Declaration

public BrushInfo ColumnsHeaderBackground { get; set; }

Property Value

Type	Description
BrushInfo

ColumnsMovedMode

Declaration

protected bool ColumnsMovedMode { get; set; }

Property Value

Type	Description
System.Boolean

CreateParams

Declaration

protected override CreateParams CreateParams { get; }

Property Value

Type	Description
System.Windows.Forms.CreateParams

Overrides

ScrollControl.CreateParams

DataMember

Gets or sets a name of a specific data table within the DataSource.

Declaration

public string DataMember { get; set; }

Property Value

Type	Description
System.String

DataSource

Gets or sets the Data Source object in MultiColumnTreeView

Declaration

public object DataSource { get; set; }

Property Value

Type	Description
System.Object

DefaultCollapseImageIndex

Gets or sets index of default image for collapse button.

Declaration

public int DefaultCollapseImageIndex { get; set; }

Property Value

Type	Description
System.Int32

DefaultExpandImageIndex

Gets or sets index of default image for expand button.

Declaration

public int DefaultExpandImageIndex { get; set; }

Property Value

Type	Description
System.Int32

Dragging

Declaration

protected bool Dragging { get; set; }

Property Value

Type	Description
System.Boolean

DragHelper

Declaration

protected DragHelper DragHelper { get; set; }

Property Value

Type	Description
DragHelper

DragOnText

Gets or sets a value indicating whether the drag-drop operation will occur only if the node is dragged on the text area.

Declaration

public virtual bool DragOnText { get; set; }

Property Value

Type	Description
System.Boolean	Default is true.

EnableTouchMode

Gets or sets value to enable or disable the Touchmode to the controls.

Declaration

public bool EnableTouchMode { get; set; }

Property Value

Type	Description
System.Boolean

Remarks

Scale factor will be updated automatically if scalefactor is equal to 1

EnsureVisibleFlag

Declaration

protected bool EnsureVisibleFlag { get; set; }

Property Value

Type	Description
System.Boolean

EnsureVisibleSelectedNode

Gets or sets a value indicating whether the selected node will be brought to view by scrolling, if necessary.

Declaration

public virtual bool EnsureVisibleSelectedNode { get; set; }

Property Value

Type	Description
System.Boolean	Default is true.

ExpandedNodes

Gets the collection of Nodes which are in Expanded state. Result is calculated on reach call.

Declaration

public TreeNodeAdvCollection ExpandedNodes { get; }

Property Value

Type	Description
TreeNodeAdvCollection

Filter

Gets or sets the function to apply custom filter on source programmatically.

Declaration

public Predicate<object> Filter { get; set; }

Property Value

Type	Description
System.Predicate<System.Object>

FilterLevel

Declaration

public FilterLevel FilterLevel { get; set; }

Property Value

Type	Description
FilterLevel

Font

Gets or sets the System.Drawing.Font value for the control.

Declaration

public override Font Font { get; set; }

Property Value

Type	Description
System.Drawing.Font

FullRowSelect

Gets or sets a value indicating whether the complete row will be highlighted when a node is selected.

Declaration

public virtual bool FullRowSelect { get; set; }

Property Value

Type	Description
System.Boolean	Default value is false.

GutterSpace

Gets or sets the space left on the left side of the control.

Declaration

public virtual int GutterSpace { get; set; }

Property Value

Type	Description
System.Int32	Default is 3.

HasColumns

Declaration

protected bool HasColumns { get; }

Property Value

Type	Description
System.Boolean	True if control has at least one column, otherwise False.

HeaderHeight

Gets or sets the height of header.

Declaration

public int HeaderHeight { get; set; }

Property Value

Type	Description
System.Int32

HelpTextControl

Gets the helptext control of the MultiColumnTreeView.

Declaration

public virtual ToolTipAdv HelpTextControl { get; }

Property Value

Type	Description
ToolTipAdv

Remarks

This is the control used to display the HelpText of the nodes.

HideSelection

Gets or sets a value indicating whether the MultiColumnTreeView will hide it's selected nodes when not focused.

Declaration

public virtual bool HideSelection { get; set; }

Property Value

Type	Description
System.Boolean	True to hide selection; false otherwise. Default value is true.

HistoryEnabled

Gets or sets a value indicating whether register items in history list.

Declaration

public bool HistoryEnabled { get; set; }

Property Value

Type	Description
System.Boolean

HistoryManager

Gets or sets the HistoryManager value.

Declaration

public HistoryManager HistoryManager { get; set; }

Property Value

Type	Description
HistoryManager

HorizontalScrollBar

Gets or sets a value indicating whether Enables or disables horizontal scrollbar. This property will be set/reset by the tree as and when required.

Declaration

protected bool HorizontalScrollBar { get; set; }

Property Value

Type	Description
System.Boolean

HorizontalThumbTrack

Gets or sets a value indicates whether the control should scroll while the user is dragging a horizontal scrollbar thumb.

Declaration

public override bool HorizontalThumbTrack { get; set; }

Property Value

Type	Description
System.Boolean

Overrides

ScrollControl.HorizontalThumbTrack

HotTracking

Gets or sets a value indicating whether the nodes will have a hot tracked appearance when the mouse cursor is hovering over them.

Declaration

public virtual bool HotTracking { get; set; }

Property Value

Type	Description
System.Boolean	Default value is false.

HScroll

Gets or sets a value indicating whether Enables or disables horizontal scrollbar.

Declaration

public bool HScroll { get; set; }

Property Value

Type	Description
System.Boolean

HScrollPos

Gets or sets the position of the Horizontal scrollbar.

Declaration

public int HScrollPos { get; set; }

Property Value

Type	Description
System.Int32

IgnoreLeave

Declaration

protected bool IgnoreLeave { get; set; }

Property Value

Type	Description
System.Boolean

IgnoreNextMouseMove

Declaration

protected bool IgnoreNextMouseMove { get; set; }

Property Value

Type	Description
System.Boolean

IgnoreThemeBackground

Gets or sets a value indicating whether the control will ignore the theme's background color and draw the BackgroundColor instead when ThemesEnabled is true.

Declaration

public bool IgnoreThemeBackground { get; set; }

Property Value

Type	Description
System.Boolean	True to ignore theme background; false otherwise. Default is false.

InactiveSelectedNodeBackground

Gets or sets the background of the selected node when the control is not focused.

Declaration

public virtual BrushInfo InactiveSelectedNodeBackground { get; set; }

Property Value

Type	Description
BrushInfo	Default is based on a system color.

InactiveSelectedNodeForeColor

Gets or sets the text color of the selected node when not focused.

Declaration

public virtual Color InactiveSelectedNodeForeColor { get; set; }

Property Value

Type	Description
System.Drawing.Color	Default is a system color.

Indent

Gets or sets the indent of the child nodes from the parent node.

Declaration

public virtual int Indent { get; set; }

Property Value

Type	Description
System.Int32	Default value is 19.

InHScroll

Declaration

protected bool InHScroll { get; set; }

Property Value

Type	Description
System.Boolean

InteractiveCheckBoxes

Gets or sets a value indicating whether the state of the parent node's checkbox is based on the checkstate of it's child nodes' checkboxes.

Declaration

public virtual bool InteractiveCheckBoxes { get; set; }

Property Value

Type	Description
System.Boolean	Default value is false.

Remarks

If all child nodes are checked the parent node is also checked. The same with unchecked. If some child nodes are checked and some are unchecked then the parent node will have an indeterminate state. If the CheckState of the parent node is set by code or by clicking on it the state of all subnodes will be set to that state.

InVScroll

Declaration

protected bool InVScroll { get; set; }

Property Value

Type	Description
System.Boolean

IsEditEnding

Declaration

protected bool IsEditEnding { get; set; }

Property Value

Type	Description
System.Boolean

IsEditing

Gets a value indicating whether selected node is in editing mode.

Declaration

public bool IsEditing { get; }

Property Value

Type	Description
System.Boolean

IsKeyDown

Declaration

protected bool IsKeyDown { get; set; }

Property Value

Type	Description
System.Boolean

IsLeftMouseDown

Declaration

protected bool IsLeftMouseDown { get; set; }

Property Value

Type	Description
System.Boolean

IsMouseDown

Declaration

protected bool IsMouseDown { get; set; }

Property Value

Type	Description
System.Boolean

IsMouseDownWithCtrl

Declaration

protected bool IsMouseDownWithCtrl { get; set; }

Property Value

Type	Description
System.Boolean

IsMouseUp

Declaration

protected bool IsMouseUp { get; set; }

Property Value

Type	Description
System.Boolean

IsVisualStyleEnabled

Gets a value indicating whether the visual style based theme is applied to the control. This also indicates whether the theme files are referred from external assemblies or not.

Declaration

public bool IsVisualStyleEnabled { get; }

Property Value

Type	Description
System.Boolean	Return true, if the visual style based theme is applied to control. Otherwise returns false.

ItemHeight

Gets or sets the default height of the nodes.

Declaration

public virtual int ItemHeight { get; set; }

Property Value

Type	Description
System.Int32	Default value is dependent on the control's font height.

KeepDottedSelection

Gets or sets a value indicating whether control must draw dotted rectangle around selected node when it has no focus.

Declaration

public bool KeepDottedSelection { get; set; }

Property Value

Type	Description
System.Boolean

KeepDragCapturePoint

Gets or sets a value indicating whether cue image should be drawn at a distance below the mouse cursor while dragging.

Declaration

public bool KeepDragCapturePoint { get; set; }

Property Value

Type	Description
System.Boolean

LabelEdit

Gets or sets a value indicating whether the label text of the tree nodes can be edited.

Declaration

public virtual bool LabelEdit { get; set; }

Property Value

Type	Description
System.Boolean	True if the label text of the tree nodes can be edited; false otherwise. The default is false.

Remarks

The BeginEdit() method will let you begin editing a node programmatically irrespective of this setting.

LastVisibleNode

Gets the last visible node.

Declaration

public virtual TreeNodeAdv LastVisibleNode { get; }

Property Value

Type	Description
TreeNodeAdv	A TreeNodeAdv instance.

Remarks

TopVisibleNode

LeftImageList

Gets or sets the imagelist that holds images to be drawn on the left of the node.

Declaration

public virtual ImageList LeftImageList { get; set; }

Property Value

Type	Description
System.Windows.Forms.ImageList

Remarks

The LeftImageIndices will then indicate which images are to be drawn in the node.

LineColor

Gets or sets the color of the tree lines.

Declaration

public virtual Color LineColor { get; set; }

Property Value

Type	Description
System.Drawing.Color	Default is Color.Gray.

LineStyle

Gets or sets the line style of the tree lines.

Declaration

public virtual DashStyle LineStyle { get; set; }

Property Value

Type	Description
System.Drawing.Drawing2D.DashStyle	Default value is DashStyle.Dot.

LoadOnDemand

Gets or sets a value indicating whether the tree should follow the load-on-demand paradigm.

Declaration

public virtual bool LoadOnDemand { get; set; }

Property Value

Type	Description
System.Boolean	Default value is false.

Remarks

When set to true, all the nodes will have the plus-minus set to visible to begin with. You should then handle the BeforeExpand event of the nodes and add subnodes to the respective nodes. The tree will then keep or hide the plus-minus based on whether or not children were added.

This provides you a way to delay loading nodes in trees until the user initiates a node expand.

MeasureGraphics

Gets or sets special measure graphics that allowing measuring without control creation.

Declaration

protected Graphics MeasureGraphics { get; set; }

Property Value

Type	Description
System.Drawing.Graphics

MetroColor

Gets or sets the value to the color of the MetroColor.

Declaration

public Color MetroColor { get; set; }

Property Value

Type	Description
System.Drawing.Color

MouseLeaved

Declaration

protected bool MouseLeaved { get; set; }

Property Value

Type	Description
System.Boolean

NeedUpdateEditTop

Declaration

protected bool NeedUpdateEditTop { get; set; }

Property Value

Type	Description
System.Boolean

NoChildrenImgIndex

Gets or sets the StateImageList index value of the image that is displayed when a tree node has no children.

Declaration

public virtual int NoChildrenImgIndex { get; set; }

Property Value

Type	Description
System.Int32	An index into the StateImageList. Default is zero.

NodeHoverColor

Gets or sets the value to the color of the MetroColor.

Declaration

public Color NodeHoverColor { get; set; }

Property Value

Type	Description
System.Drawing.Color

Nodes

Gets or sets the top-level nodes collection of the MultiColumnTreeView.

Declaration

public virtual TreeNodeAdvCollection Nodes { get; }

Property Value

Type	Description
TreeNodeAdvCollection

NodeStateImageList

Gets or sets ImageList with images that are displayed instead of expand or collapse button.

Declaration

public ImageList NodeStateImageList { get; set; }

Property Value

Type	Description
System.Windows.Forms.ImageList

OpenImgIndex

Gets or sets the StateImageList index value of the image that is displayed when a tree node is expanded.

Declaration

public virtual int OpenImgIndex { get; set; }

Property Value

Type	Description
System.Int32	An index into the StateImageList. Default is 2.

OwnerDrawNodes

Gets or sets a value indicating whether the BeforeNodePaint and AfterNodePaint events will be fired before drawing a node.

Declaration

public virtual bool OwnerDrawNodes { get; set; }

Property Value

Type	Description
System.Boolean	Default value is false.

OwnerDrawNodesBackground

Gets or sets a value indicating whether the NodeBackgroundPaint event will be fired before drawing a node's background.

Declaration

public virtual bool OwnerDrawNodesBackground { get; set; }

Property Value

Type	Description
System.Boolean	Default value is false.

Padding

Gets or sets the padding value.

Declaration

public Padding Padding { get; set; }

Property Value

Type	Description
System.Windows.Forms.Padding

ParentMember

Gets or sets a value indicating the parent data field which behaves as a Parent Node in MultiColumnTreeView.

Declaration

public string ParentMember { get; set; }

Property Value

Type	Description
System.String

PathSeparator

Gets or sets the separator string that splits the path of a node.

Declaration

public virtual string PathSeparator { get; set; }

Property Value

Type	Description
System.String	Default value is "".

Remarks

Call GetPath(String) to get the path of the specified node.

PreparingDragCueBitmap

Declaration

protected bool PreparingDragCueBitmap { get; set; }

Property Value

Type	Description
System.Boolean

PrintDocument

Gets the PrintDocument of the MultiColumnTreeView.

Declaration

public PrintDocument PrintDocument { get; }

Property Value

Type	Description
System.Drawing.Printing.PrintDocument

Remarks

when you use print document it will give the snap shot only so use printpreview

Printing

Gets or sets a value indicating whether the MultiColumnTreeView is printing.

Declaration

public bool Printing { get; set; }

Property Value

Type	Description
System.Boolean

RightImageList

Gets or sets the imagelist that holds images to be drawn on the right of the node.

Declaration

public virtual ImageList RightImageList { get; set; }

Property Value

Type	Description
System.Windows.Forms.ImageList

Remarks

The RightImageIndices will then indicate which images are to be drawn in the node.

RMouseDownNode

Gets or sets the node on which the user did a right-mouse down.

Declaration

public virtual TreeNodeAdv RMouseDownNode { get; set; }

Property Value

Type	Description
TreeNodeAdv	A TreeNodeAdv instance.

Remarks

This property will return a non-null value only when the user has his mouse down or when the context menu is being shown for the tree.

Use this property in your context-menu's popup event to determine on which node the user had right-clicked. However, do not use this property in a context menu item's Click property as this would be set to null by then. If the user right-clicked in the empty region then this property will return null.

When the user instead used the keyboard to invoke the context menu (via Shift+F10) then this property will return the currently selected node and the menu will also appear beside the selected node.

Root

Gets or sets the root node of the MultiColumnTreeView.

Declaration

public virtual TreeNodeAdv Root { get; set; }

Property Value

Type	Description
TreeNodeAdv

Scrollable

Gets or sets a value indicating whether Enables or disables scrollbars.

Declaration

public virtual bool Scrollable { get; set; }

Property Value

Type	Description
System.Boolean

SelectedItem

Gets the SelectedItem object from the DataSource in MultiColumnTreeView

Declaration

public object SelectedItem { get; }

Property Value

Type	Description
System.Object

Remarks

SelectedItem property will return value only when DataSource is used to define the underlying tree data

SelectedItems

Gets the SelectedItems objects from the DataSource in MultiColumnTreeView

Declaration

public BindingList<object> SelectedItems { get; }

Property Value

Type	Description
System.ComponentModel.BindingList<System.Object>

Remarks

SelectedItems will return value only when DataSource is used to define the underlying tree data

SelectedNode

Gets or sets the selected node of the MultiColumnTreeView.

Declaration

public virtual TreeNodeAdv SelectedNode { get; set; }

Property Value

Type	Description
TreeNodeAdv

Remarks

The tree fires the BeforeSelect event to let you cancel the change and AfterSelect event to notify you of a new selected node.

Use to SelectedNodes property when multi-node selection is turned on.

SelectedNodeBackground

Gets or sets the background of the selected node.

Declaration

public virtual BrushInfo SelectedNodeBackground { get; set; }

Property Value

Type	Description
BrushInfo	Default is based on a system color.

SelectedNodeForeColor

Gets or sets the text color of the selected node.

Declaration

public virtual Color SelectedNodeForeColor { get; set; }

Property Value

Type	Description
System.Drawing.Color	Default is a system color.

SelectedNodes

Gets the selected nodes of the MultiColumnTreeView.

Declaration

public SelectedNodesCollection SelectedNodes { get; }

Property Value

Type	Description
SelectedNodesCollection

Remarks

Use this property only when SelectionMode property lets you select multiple nodes. Otherwise, use SelectedNode to get the single selected node.

SelectionBaseNode

Gets the base node, based on which multiple selection will be performed.

Declaration

public virtual TreeNodeAdv SelectionBaseNode { get; }

Property Value

Type	Description
TreeNodeAdv	A TreeNodeAdv instance or null if there is no such node.

Remarks

This node will be consulted while extending the selection in a multi-select scenario using user interaction or when calling the ExtendSelectionTo(TreeNodeAdv, Boolean) method.

SelectionMode

Gets or sets the selection mode for the tree.

Declaration

public virtual TreeSelectionMode SelectionMode { get; set; }

Property Value

Type	Description
TreeSelectionMode	Default is TreeSelectionMode.Single.

Remarks

Note that setting this property does not affect the current selection state. For example, if the current selection includes multiple nodes and this property gets set to TreeSelectionMode.Single, then the will not be cleared to show a single selection.

SelectOnCollapse

Gets or sets a value indicating whether the collapsed node should be selected if any of the child node is selected or not.

Declaration

public bool SelectOnCollapse { get; set; }

Property Value

Type	Description
System.Boolean	`true` if the collapsed node should be selected if that node has a selected child node; otherwise, `false`.

Remarks

If this property is set to false, it won't trigger the BeforeSelect and AfterSelect event after collapsing the node.

SelectUpwardDirection

Declaration

protected bool SelectUpwardDirection { get; set; }

Property Value

Type	Description
System.Boolean

SelfRelationRootValue

Gets or sets the value that defines the root object in a self-relational mode when DataSource is used to define the underlying tree data.

Declaration

public string SelfRelationRootValue { get; set; }

Property Value

Type	Description
System.String

ShouldSelectNodeOnEnter

Gets or sets a value indicating whether the default node should be selected on the MultiColumnTreeView control gains focus.

Declaration

public bool ShouldSelectNodeOnEnter { get; set; }

Property Value

Type	Description
System.Boolean	`true` if node should be selected on MultiColumnTreeView gains focus; otherwise, `false`.

ShowCheckBoxes

Gets or sets a value indicating whether checkboxes will be shown for the nodes.

Declaration

public virtual bool ShowCheckBoxes { get; set; }

Property Value

Type	Description
System.Boolean	Default value is false.

ShowColumnsHeader

Gets or sets a value indicating whether header drawn or not.

Declaration

public virtual bool ShowColumnsHeader { get; set; }

Property Value

Type	Description
System.Boolean	Default value is True.

ShowDragNodeCue

Gets or sets a value indicating whether an alpha blended image of the selected nodes should be drawn beside the cursor during drag and drop.

Declaration

public virtual bool ShowDragNodeCue { get; set; }

Property Value

Type	Description
System.Boolean	True to show an alpha blended image; false otherwise. Default is true. You could customize the style in which nodes are drawn in the above image by adding a "DragNodeCueStyle" style to the BaseStyles collection.

ShowLines

Gets or sets a value indicating whether the tree lines are visible.

Declaration

public virtual bool ShowLines { get; set; }

Property Value

Type	Description
System.Boolean	Default value is true.

ShowOptionButtons

Gets or sets a value indicating whether the nodes will have an option button.

Declaration

public virtual bool ShowOptionButtons { get; set; }

Property Value

Type	Description
System.Boolean	Default value is false.

ShowPlusMinus

Gets or sets a value indicating whether the plus minus controls are visible.

Declaration

public virtual bool ShowPlusMinus { get; set; }

Property Value

Type	Description
System.Boolean	Default value is true.

ShowRootLines

Gets or sets a value indicating whether lines are drawn between the tree nodes that are at the root of the tree view.

Declaration

public virtual bool ShowRootLines { get; set; }

Property Value

Type	Description
System.Boolean	Default value is true.

SmartSizeBox

Gets or sets a value indicating whether the size box should be drawn when both scrollbars are visible and the control is not a docked window in an MDIChild window.

Declaration

public bool SmartSizeBox { get; set; }

Property Value

Type	Description
System.Boolean

Remarks

Showing the size box works around a problem with .NET controls because by default the the area at the bottom right is not drawn and that can cause drawing glitches. Note: Another better solution is drawing NonClientArea ourselves. See SizeGripStyle which implements this newer solution.

SortWithChildNodes

Gets or sets a value indicating whether sort treeview including all the child nodes.

Declaration

public bool SortWithChildNodes { get; set; }

Property Value

Type	Description
System.Boolean	`true` if sort all with child nodes; otherwise, `false`.

Examples

This example describes how to sort all the nodes in the MultiColumnTreeView

If SortWithChildNodes property is set to true,the user can sort all the nodes including all the child nodes in the treeViewAdv.
The SortOrder of the Root should be specified for the sorting all nodes.
// Sorts only the root nodes.
private void button1_Click(object sender, System.EventArgs e)
{
this.treeViewAdv1.Nodes.Sort();
}
// Sort all the root nodes and the child nodes in the TreeviewAdv
private void button2_Click_1(object sender, System.EventArgs e)
{
this.treeViewAdv1.Root.SortOrder=SortOrder.Ascending;
this.treeViewAdv1.SortWithChildNodes=true;
this.treeViewAdv1.Root.Sort();
}

'Sorts only the root nodes.

Private Sub button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Me.treeViewAdv1.Nodes.Sort() End Sub 'Sort all the root nodes and the child nodes in the TreeviewAdv Private Sub button2_Click_1(ByVal sender As Object, ByVal e As System.EventArgs) Me.treeViewAdv1.Root.SortOrder=SortOrder.Ascending Me.treeViewAdv1.SortWithChildNodes=True Me.treeViewAdv1.Root.Sort() End Sub

StandardColumnStyle

Gets the standard style that all columns inherit from, by default.

Declaration

public TreeColumnAdvStyleInfo StandardColumnStyle { get; }

Property Value

Type	Description
TreeColumnAdvStyleInfo

StandardStyle

Gets the standard style that all the nodes inherit from, by default.

Declaration

public TreeNodeAdvStyleInfo StandardStyle { get; }

Property Value

Type	Description
TreeNodeAdvStyleInfo

StandardSubItemStyle

Gets the standard style that all sub-items inherit from, by default.

Declaration

public TreeNodeAdvSubItemStyleInfo StandardSubItemStyle { get; }

Property Value

Type	Description
TreeNodeAdvSubItemStyleInfo

StateImageList

Gets or sets the imagelist that holds images to be drawn based on the state of the node.

Declaration

public virtual ImageList StateImageList { get; set; }

Property Value

Type	Description
System.Windows.Forms.ImageList

Remarks

The OpenImgIndex, ClosedImgIndex and NoChildrenImgIndex properties refer to an image inside this list.

Style

Gets or sets the value to the Style.

Declaration

public MultiColumnVisualStyle Style { get; set; }

Property Value

Type	Description
MultiColumnVisualStyle

SuspendExpandRecalculate

Gets or sets a value indicating whether the Recalculation of the nodes maximum height should be done while expanding or collapsing.

Declaration

public bool SuspendExpandRecalculate { get; set; }

Property Value

Type	Description
System.Boolean	`true` if suspend recalculate the nodes hieght while expand/collapse; otherwise, `false`.

Remarks

This property can be reduced the delay while expanding/ collapsing the large number of nodes, if we set it as true.

ThemeName

Gets or sets the theme name of the ContextMenuStripEx control.

Declaration

public string ThemeName { get; set; }

Property Value

Type	Description
System.String

ThemesEnabled

Gets or sets a value indicating whether the control and it's parts should be drawn themed.

Declaration

public bool ThemesEnabled { get; set; }

Property Value

Type	Description
System.Boolean	True to enable themes; false otherwise. Default is false.

ThemeStyle

Gets or sets the MultiColumnTreeViewVisualStyle value used to customize the appearance of the MultiColumnTreeView.

Declaration

public MultiColumnTreeViewVisualStyle ThemeStyle { get; set; }

Property Value

Type	Description
MultiColumnTreeViewVisualStyle

Remarks

This ThemeStyle settings will be applied only when the VisualStyleBased theme has been applied to the control.

ToolTipControl

Gets the tooltip control of the MultiColumnTreeView.

Declaration

public virtual ToolTipAdv ToolTipControl { get; }

Property Value

Type	Description
ToolTipAdv

Remarks

This is the control used to display the tooltip for the nodes when the text of the nodes are partially visible.

TopVisibleNode

Gets the first fully-visible tree node in the tree view control.

Declaration

public TreeNodeAdv TopVisibleNode { get; }

Property Value

Type	Description
TreeNodeAdv	A TreeNodeAdv that represents the first fully-visible tree node in the tree view control.

Remarks

Initially, the TopVisibleNode returns the first root tree node, which is located at the top of the MultiColumnTreeView. However, if the user has scrolled the contents, another tree node might be at the top. LastVisibleNode

TransparentControls

Gets or sets a value indicating whether the controls (eg PlusMinus) will have a transparent background.

Declaration

public virtual bool TransparentControls { get; set; }

Property Value

Type	Description
System.Boolean	Default is false.

Remarks

Setting this property slows down drawing of the MultiColumnTreeView control.

TreeAllColumnsRectangle

Gets Rectangle reserved by control for tree painting.

Declaration

protected Rectangle TreeAllColumnsRectangle { get; }

Property Value

Type	Description
System.Drawing.Rectangle

TreeColumnRectangle

Gets Rectangle reserved by control for tree painting. RTL mirror effect is applied on result rectangle automatically. Scrolling effects also applied on result rectangle automatically.

Declaration

protected Rectangle TreeColumnRectangle { get; }

Property Value

Type	Description
System.Drawing.Rectangle

UseDefaultDrawing

Gets or sets a value indicating whether default graphics to be used for drawing instead of double buffering for faster drawing performance.

Declaration

public bool UseDefaultDrawing { get; set; }

Property Value

Type	Description
System.Boolean

VerticallScrollBar

Gets or sets a value indicating whether Enables or disables vertical scrollbar. This property will be set/reset by the tree as and when required.

Declaration

protected bool VerticallScrollBar { get; set; }

Property Value

Type	Description
System.Boolean

VerticalThumbTrack

Gets or sets the value indicates whether the control should scroll while the user is dragging a vertical scrollbar thumb.

Declaration

public override bool VerticalThumbTrack { get; set; }

Property Value

Type	Description
System.Boolean

Overrides

ScrollControl.VerticalThumbTrack

VisibleCount

Gets the number of tree nodes that can be fully visible in the tree view control.

Declaration

public int VisibleCount { get; }

Property Value

Type	Description
System.Int32	The number of TreeNodeAdv items that can be fully visible in the MultiColumnTreeView control.

Remarks

The VisibleCount value can be greater than the number of tree nodes in the tree view. The value is calculated by dividing the height of the client window by the height of a tree node item. The result is the total number of TreeNodeAdv objects that the MultiColumnTreeView is capable of displaying within its current dimensions.

VScroll

Gets or sets a value indicating whether Enables or disables vertical scrollbar.

Declaration

public bool VScroll { get; set; }

Property Value

Type	Description
System.Boolean

VScrollPos

Gets or sets the position of the Vertical scrollbar.

Declaration

public int VScrollPos { get; set; }

Property Value

Type	Description
System.Int32

Methods

ApplyScaleToControl(Single)

Scale the control based on the scale factor passed in the argument.

Declaration

public void ApplyScaleToControl(float scaleFactor)

Parameters

Type	Name	Description
System.Single	scaleFactor	value to scale the factor based upon.

BeginEdit()

Begins the editing of the selected node.

Declaration

public virtual void BeginEdit()

BeginEdit(TreeNodeAdv)

Overloaded. Begins the editing of the specified node.

Declaration

public void BeginEdit(TreeNodeAdv node)

Parameters

Type	Name	Description
TreeNodeAdv	node	The node to edit.

CancelEditMode()

Cancels the edit mode.

Declaration

public void CancelEditMode()

Remarks

The CancelEditMode method cancels the edit mode when the node is in the EditingMode.

CancelMode()

Cancels any current mouse based selection and edit mode.

Declaration

public void CancelMode()

CollapseAll()

Collapses all the tree nodes.

Declaration

public void CollapseAll()

Remarks

The CollapseAll method collapses all the TreeNodeAdv objects, including all the child tree nodes, that are in the MultiColumnTreeView control.

The state of a TreeNodeAdv persists. For example, suppose that a parent tree node is expanded. If the child tree nodes were not previously collapsed, they will appear in their previously-expanded state. Calling the CollapseAll method ensures that all the tree nodes appear in the collapsed state.

CreateAccessibilityInstance()

Declaration

protected override AccessibleObject CreateAccessibilityInstance()

Returns

Type	Description
System.Windows.Forms.AccessibleObject

DispatchDoDragDrop(Object, DragDropEffects)

Initiates the drag drop operation.

Declaration

public DragDropEffects DispatchDoDragDrop(object data, DragDropEffects allowedEffects)

Parameters

Type	Name	Description
System.Object	data
System.Windows.Forms.DragDropEffects	allowedEffects

Returns

Type	Description
System.Windows.Forms.DragDropEffects

DispatchDragOver(DragEventArgs)

Initiates the drag over operation.

Declaration

public void DispatchDragOver(DragEventArgs drgevent)

Parameters

Type	Name	Description
System.Windows.Forms.DragEventArgs	drgevent

DispatchOnDragDrop(DragEventArgs)

Initiates the drag drop operation.

Declaration

public void DispatchOnDragDrop(DragEventArgs drgevent)

Parameters

Type	Name	Description
System.Windows.Forms.DragEventArgs	drgevent

DispatchOnDragEnter(DragEventArgs)

Initiates the drag enter operation.

Declaration

public void DispatchOnDragEnter(DragEventArgs drgevent)

Parameters

Type	Name	Description
System.Windows.Forms.DragEventArgs	drgevent

DispatchOnDragLeave(EventArgs)

Initiates the drag leave operation.

Declaration

public void DispatchOnDragLeave(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

DispatchOnGiveFeedback(GiveFeedbackEventArgs)

Initiates the feedback operation.

Declaration

public void DispatchOnGiveFeedback(GiveFeedbackEventArgs args)

Parameters

Type	Name	Description
System.Windows.Forms.GiveFeedbackEventArgs	args

DispatchOnQueryContinueDrag(QueryContinueDragEventArgs)

Initiates the drag-and-drop operation and decide whether to continue the operation.

Declaration

public void DispatchOnQueryContinueDrag(QueryContinueDragEventArgs args)

Parameters

Type	Name	Description
System.Windows.Forms.QueryContinueDragEventArgs	args

Dispose(Boolean)

Cleans up any resources being used.

Declaration

protected override void Dispose(bool disposing)

Parameters

Type	Name	Description
System.Boolean	disposing

Overrides

ScrollControl.Dispose(Boolean)

DoDragDrop(Object, DragDropEffects)

Begins a drag-and-drop operation. Added by lucas in order to resolve problem 169.

Declaration

public DragDropEffects DoDragDrop(object data, DragDropEffects allowedEffects)

Parameters

Type	Name	Description
System.Object	data	The data to drag.
System.Windows.Forms.DragDropEffects	allowedEffects	One of the DragDropEffects values.

Returns

Type	Description
System.Windows.Forms.DragDropEffects	A value from the DragDropEffects enumeration that represents the final effect that was performed during the drag-and-drop operation.

Draw(PaintEventArgs)

Declaration

protected virtual void Draw(PaintEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.PaintEventArgs	e

DrawBackground(PaintEventArgs)

Declaration

protected virtual void DrawBackground(PaintEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.PaintEventArgs	e

DrawBackgroundColumns(PaintEventArgs)

Declaration

protected virtual void DrawBackgroundColumns(PaintEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.PaintEventArgs	e

DrawBackgroundForEmptyColumnCell(Graphics, Rectangle, Rectangle, TreeNodeAdv, TreeNodeAdv)

Fills empty cell for column

Declaration

protected virtual void DrawBackgroundForEmptyColumnCell(Graphics g, Rectangle selectionBounds, Rectangle bounds, TreeNodeAdv node, TreeNodeAdv mouseDownNode)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
System.Drawing.Rectangle	selectionBounds
System.Drawing.Rectangle	bounds
TreeNodeAdv	node
TreeNodeAdv	mouseDownNode

DrawHeader(Graphics, Rectangle, Int32)

Method draw header of the tree view

Declaration

protected virtual int DrawHeader(Graphics g, Rectangle bounds, int bordersOffset)

Parameters

Type	Name	Description
System.Drawing.Graphics	g	Graphics on which we should draw columns.
System.Drawing.Rectangle	bounds	Control bounds.
System.Int32	bordersOffset	area reserved for borders

Returns

Type	Description
System.Int32	Height of header.

DrawNode(Graphics, Rectangle, TreeNodeAdv, Int32, Point, Boolean, Boolean)

Declaration

protected virtual void DrawNode(Graphics g, Rectangle clip, TreeNodeAdv node, int y, Point mousePos, bool mouseDown, bool background)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
System.Drawing.Rectangle	clip
TreeNodeAdv	node
System.Int32	y
System.Drawing.Point	mousePos
System.Boolean	mouseDown
System.Boolean	background

DrawNodeBackground(Graphics, TreeNodeAdv, Int32, TreeNodeAdv, Rectangle, Boolean, Boolean, Boolean)

Declaration

protected virtual void DrawNodeBackground(Graphics g, TreeNodeAdv node, int offsetY, TreeNodeAdv mouseDownNode, Rectangle clip, bool active, bool selected, bool hotTrack)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
TreeNodeAdv	node
System.Int32	offsetY
TreeNodeAdv	mouseDownNode
System.Drawing.Rectangle	clip
System.Boolean	active
System.Boolean	selected
System.Boolean	hotTrack

DrawNodeSubItems(Graphics, TreeNodeAdv, Int32)

Declaration

protected virtual void DrawNodeSubItems(Graphics g, TreeNodeAdv node, int offsetY)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
TreeNodeAdv	node
System.Int32	offsetY

DrawVerticalLines(Graphics, TreeNodeAdv, TreeNodeAdv, Int32, Int32)

Draws the vertical lines of the tree.

Declaration

protected virtual void DrawVerticalLines(Graphics g, TreeNodeAdv topCRNode, TreeNodeAdv node, int rowIndex, int lastNode)

Parameters

Type	Name	Description
System.Drawing.Graphics	g	Graphics object.
TreeNodeAdv	topCRNode
TreeNodeAdv	node	Node to draw the vertical lines to.
System.Int32	rowIndex	The RowIndex of the node.
System.Int32	lastNode	The Last Visible Node Row Index for comparing if in the node iteration nodes have passed it.

EndEdit()

Forces the end of the editing of the selected node.

Declaration

public void EndEdit()

EndEdit(Boolean)

Saves or Cancels the editing of the selected node.

Declaration

public virtual void EndEdit(bool cancel)

Parameters

Type	Name	Description
System.Boolean	cancel	True to cancel editing; false to save changes.

EnsureVisible(TreeNodeAdv)

Overloaded. Scrolls the control so that the specified node becomes visible.

Declaration

public void EnsureVisible(TreeNodeAdv node)

Parameters

Type	Name	Description
TreeNodeAdv	node	The node that requires visibility.

EnsureVisibleH(TreeNodeAdv)

Scrolls the control so that the specified node becomes visible and optionally forces it to be the top-most visible node.

Declaration

public void EnsureVisibleH(TreeNodeAdv node)

Parameters

Type	Name	Description
TreeNodeAdv	node	The node that is to be scrolled

EnsureVisibleV(TreeNodeAdv, Boolean)

Scrolls the control so that the specified node becomes visible and optionally forces it to be the top-most visible node.

Declaration

public void EnsureVisibleV(TreeNodeAdv node, bool showOnTop)

Parameters

Type	Name	Description
TreeNodeAdv	node	The node that is to be scrolled.
System.Boolean	showOnTop	True to force it to be the the top-most visible node; false to just scroll it into view.

ExpandAll()

Expands all the tree nodes.

Declaration

public void ExpandAll()

Remarks

The ExpandAll method expands all the TreeNodeAdv objects, including all the child tree nodes, that are in the MultiColumnTreeView control.

ExtendSelectionTo(TreeNodeAdv)

Overloaded. Extends the selection to the specified node.

Declaration

public void ExtendSelectionTo(TreeNodeAdv selNode)

Parameters

Type	Name	Description
TreeNodeAdv	selNode	A TreeNodeAdv.

Remarks

This method will not do anything if the SelectionMode property is set to TreeSelectionMode.Single.

ExtendSelectionTo(TreeNodeAdv, Boolean)

Extends the selection to the specified node.

Declaration

public void ExtendSelectionTo(TreeNodeAdv pSelectedNode, bool removeCurrentMultipleSelection)

Parameters

Type	Name	Description
TreeNodeAdv	pSelectedNode	A TreeNodeAdv.
System.Boolean	removeCurrentMultipleSelection	Indicates whether or not any current selection should be removed.

Remarks

This method will not do anything if the SelectionMode property is set to TreeSelectionMode.Single.

Finalize()

in destructor don't forget to clean resources.

Declaration

protected override void Finalize()

GetActiveThemeName()

Gets the active theme name of the ContextMenuStripEx control.

Declaration

public string GetActiveThemeName()

Returns

Type	Description
System.String	Returns the active theme name.

GetBordersOffset()

Method calculate how much space reserved for borders by control.

Declaration

protected int GetBordersOffset()

Returns

Type	Description
System.Int32	pixels reserved for borders.

Remarks

returned value must be be in range [0;2].

GetDraggedNodesBitmap()

Returns a System.Drawing.Bitmap that contains the image of the dragged nodes with it's state image.

Declaration

public Bitmap GetDraggedNodesBitmap()

Returns

Type	Description
System.Drawing.Bitmap	A System.Drawing.Bitmap instance when there is atleast one selected node; Null otherwise.

GetHeightOfRows(Int32, Int32)

Returns the total height of the rows from the specified start to end.

Declaration

public int GetHeightOfRows(int start, int end)

Parameters

Type	Name	Description
System.Int32	start	The top row.
System.Int32	end	The bottom row.

Returns

Type	Description
System.Int32	The total height.

GetNodeAtPoint(Point)

Returns the node at the specified location.

Declaration

public TreeNodeAdv GetNodeAtPoint(Point pt)

Parameters

Type	Name	Description
System.Drawing.Point	pt	The point.

Returns

Type	Description
TreeNodeAdv	The node at the point.

GetNodeAtPoint(Point, Boolean)

Returns the node at the specified location.

Declaration

public TreeNodeAdv GetNodeAtPoint(Point pt, bool textBounds)

Parameters

Type	Name	Description
System.Drawing.Point	pt	Location.
System.Boolean	textBounds	Indicates whether the testing will be done using the bounds of the text, not the whole bounds of the node.

Returns

Type	Description
TreeNodeAdv	The node at the point.

GetNodeAtPoint(Point, Boolean, Boolean)

Returns the node at the specified location.

Declaration

public TreeNodeAdv GetNodeAtPoint(Point pt, bool pHitTextBounds, bool pHitTextOrImageBounds)

Parameters

Type	Name	Description
System.Drawing.Point	pt	Location.
System.Boolean	pHitTextBounds	Indicates whether the testing will be done using the bounds of the text, not the whole bounds of the node.
System.Boolean	pHitTextOrImageBounds	Indicates whether the testing will be done using the bounds of the images and text, not the whole bounds of the node.

Returns

Type	Description
TreeNodeAdv	The node at the point.

Remarks

If both the pHitTextBounds and pHitTextOrImageBounds params are false then the testing will be done on the whole node.

GetNodeAtPoint(Int32, Int32)

Overloaded. Returns the node at the specified location.

Declaration

public TreeNodeAdv GetNodeAtPoint(int x, int y)

Parameters

Type	Name	Description
System.Int32	x	The X co-ordinate.
System.Int32	y	The Y co-ordinate.

Returns

Type	Description
TreeNodeAdv	The node at the point.

GetNodeAtPointEx(Point)

Returns the node at the specified point.

Declaration

public TreeNodeAdv GetNodeAtPointEx(Point pt)

Parameters

Type	Name	Description
System.Drawing.Point	pt	Specified point.

Returns

Type	Description
TreeNodeAdv	Node at specified point if exist; null otherwise.

GetNodeCount(Boolean)

Retrieves the number of tree nodes, optionally including those in all subtrees, assigned to the tree view control.

Declaration

public int GetNodeCount(bool includeSubTrees)

Parameters

Type	Name	Description
System.Boolean	includeSubTrees	true to count the TreeNodeAdv items that the subtrees contain; false otherwise.

Returns

Type	Description
System.Int32	The number of tree nodes, optionally including those in all subtrees, assigned to the tree view control.

Remarks

If includeSubTrees is true, the result is the number of all the tree nodes in the entire tree structure.

Examples

This example describes how to count all the nodes(including child nodes) of the treeViewAdv The user could get the total number of nodes by calling GetNodeCount method with the bool argument which indicates whether count should include sub trees or not. If we pass it as true, it will count the nodes with the subtrees also.

private void button1_Click(object sender, System.EventArgs e) 
{ 
 //Call the tree control's "GetNodeCount" method with true to 
 //get the total number of nodes in the tree 
int TotalNodesInTree = this.treeViewAdv1.GetNodeCount( true ); 
MessageBox.Show( "Total nodes in tree = " + TotalNodesInTree.ToString()); 
} 
//Add nodes  
private void button2_Click(object sender, System.EventArgs e) 
{ 
this.treeViewAdv1.SelectedNode.Nodes.Add(new TreeNodeAdv()); 
} 
//Remove nodes 
private void button3_Click(object sender, System.EventArgs e) 
{ 
this.treeViewAdv1.SelectedNode.Parent.Nodes.Remove(this.treeViewAdv1.SelectedNode); 
}

 
Private Sub button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
' Call the tree control's  "GetNodeCount" method with true to
' get the total number of nodes in the tree
Dim TotalNodesInTree As Integer = Me.treeViewAdv1.GetNodeCount(True)
MessageBox.Show("Total nodes in tree = " & TotalNodesInTree.ToString())
End Sub
'Add nodes
Private Sub button2_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.treeViewAdv1.SelectedNode.Nodes.Add(New TreeNodeAdv())
End Sub
'Remove nodes
Private Sub button3_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.treeViewAdv1.SelectedNode.Parent.Nodes.Remove(Me.treeViewAdv1.SelectedNode)
End Sub

GetNodeFromPath(String)

Returns a node from the specified path. Make sure that the path does not end with a separator when calling this.

Declaration

public TreeNodeAdv GetNodeFromPath(string path)

Parameters

Type	Name	Description
System.String	path	The path of the node.

Returns

Type	Description
TreeNodeAdv	The node that has the specified path.

GetPathFromNode(TreeNodeAdv)

Returns the path of the specified node.

Declaration

public string GetPathFromNode(TreeNodeAdv node)

Parameters

Type	Name	Description
TreeNodeAdv	node	Node whose path is to be returned.

Returns

Type	Description
System.String	The path of the node.

GetSelectedNodesRectangle(TreeNodeAdv[])

Returns the smallest rectangle enclosing the selected region of all the nodes specified.

Declaration

protected Rectangle GetSelectedNodesRectangle(TreeNodeAdv[] tnas)

Parameters

Type	Name	Description
TreeNodeAdv[]	tnas	The nodes whose selected region is to be included in the resultant rect.

Returns

Type	Description
System.Drawing.Rectangle	The bounding Rectangle.

Remarks

The node's text and left images will be included in the rectangles.

GetSubItemAtPoint(Point)

Gets the treeNodeAdvSubItem at the specified location.

Declaration

public TreeNodeAdvSubItem GetSubItemAtPoint(Point pt)

Parameters

Type	Name	Description
System.Drawing.Point	pt

Returns

Type	Description
TreeNodeAdvSubItem

GetSubItemAtPoint(Int32, Int32)

Gets the treeNodeAdvSubItem at the specified location.

Declaration

public TreeNodeAdvSubItem GetSubItemAtPoint(int x, int y)

Parameters

Type	Name	Description
System.Int32	x
System.Int32	y

Returns

Type	Description
TreeNodeAdvSubItem

InitializeStyles()

Initialize control styles. Crete list of standard styles.

Declaration

protected virtual void InitializeStyles()

InvalidateNodeCollection(ICollection)

Invalidates nodes in collection.

Declaration

protected void InvalidateNodeCollection(ICollection col)

Parameters

Type	Name	Description
System.Collections.ICollection	col	Collection to invalidate.

InvalidateWindow()

Declaration

protected void InvalidateWindow()

IsInputChar(Char)

Declaration

protected override bool IsInputChar(char charCode)

Parameters

Type	Name	Description
System.Char	charCode

Returns

Type	Description
System.Boolean

IsInputKey(Keys)

Declaration

protected override bool IsInputKey(Keys keyData)

Parameters

Type	Name	Description
System.Windows.Forms.Keys	keyData

Returns

Type	Description
System.Boolean

MeasureDisplayStringSize(Graphics, String, Font)

Returns the width required to draw the text specified using the font specified.

Declaration

public Size MeasureDisplayStringSize(Graphics graphics, string text, Font font)

Parameters

Type	Name	Description
System.Drawing.Graphics	graphics	A System.Drawing.Graphics object.
System.String	text	The text that is to be drawn.
System.Drawing.Font	font	The System.Drawing.Font using which to draw.

Returns

Type	Description
System.Drawing.Size	Width required.

MeasureDisplayStringSize(Graphics, String, Font, Int32)

Returns the width required to draw the text specified using the font specified.

Declaration

public Size MeasureDisplayStringSize(Graphics graphics, string text, Font font, int width)

Parameters

Type	Name	Description
System.Drawing.Graphics	graphics	A System.Drawing.Graphics object.
System.String	text	The text that is to be drawn.
System.Drawing.Font	font	The System.Drawing.Font using which to draw.
System.Int32	width

Returns

Type	Description
System.Drawing.Size	Size required for text.

MirrorHorizontalPosition(Int32, Int32)

Declaration

protected int MirrorHorizontalPosition(int nX, int nWidth)

Parameters

Type	Name	Description
System.Int32	nX
System.Int32	nWidth

Returns

Type	Description
System.Int32

NodeToPoint(TreeNodeAdv)

Returns the location of the tree node in client co-ordinates.

Declaration

public Point NodeToPoint(TreeNodeAdv node)

Parameters

Type	Name	Description
TreeNodeAdv	node	The TreeNodeAdv whose location you need.

Returns

Type	Description
System.Drawing.Point	A System.Drawing.Point.

Remarks

Operation has linear computation complexity algorithm that is why use it carefully on large tree hierarchies.

NodeToRectangle(TreeNodeAdv)

Returns the rectangular area in which the tree node will be drawn.

Declaration

public Rectangle NodeToRectangle(TreeNodeAdv node)

Parameters

Type	Name	Description
TreeNodeAdv	node	A TreeNodeAdv.

Returns

Type	Description
System.Drawing.Rectangle	A System.Drawing.Rectangle.

NodeToRowIndex(TreeNodeAdv)

Returns the row index of a tree node.

Declaration

public int NodeToRowIndex(TreeNodeAdv node)

Parameters

Type	Name	Description
TreeNodeAdv	node	A TreeNodeAdv.

Returns

Type	Description
System.Int32	The row index.

OnAfterCheck(TreeNodeAdvEventArgs)

Raises the AfterCheck event.

Declaration

protected virtual void OnAfterCheck(TreeNodeAdvEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvEventArgs	e	A TreeNodeAdvEventArgs that contains the event data.

Remarks

The OnAfterCheck method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnAfterCheck in a derived class, be sure to call the base class's OnAfterCheck method so that registered delegates receive the event.

OnAfterCollapse(TreeViewAdvNodeEventArgs)

Raises the AfterCollapse event.

Declaration

protected virtual void OnAfterCollapse(TreeViewAdvNodeEventArgs e)

Parameters

Type	Name	Description
TreeViewAdvNodeEventArgs	e	An EventArgs that contains the event data.

Remarks

The OnAfterCollapse method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnAfterCollapse in a derived class, be sure to call the base class's OnAfterCollapse method so that registered delegates receive the event.

OnAfterExpand(TreeViewAdvNodeEventArgs)

Raises the AfterExpand event.

Declaration

protected virtual void OnAfterExpand(TreeViewAdvNodeEventArgs e)

Parameters

Type	Name	Description
TreeViewAdvNodeEventArgs	e	An EventArgs that contains the event data.

Remarks

The OnAfterExpand method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnAfterExpand in a derived class, be sure to call the base class's OnAfterExpand method so that registered delegates receive the event.

OnAfterInteractiveChecks(TreeNodeAdvEventArgs)

Raises the AfterInteractiveChecks event.

Declaration

protected virtual void OnAfterInteractiveChecks(TreeNodeAdvEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvEventArgs	e	A TreeNodeAdvEventArgs that contains the event data.

Remarks

The OnAfterInteractiveChecks method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnAfterInteractiveChecks in a derived class, be sure to call the base class's OnAfterInteractiveChecks method so that registered delegates receive the event.

OnAfterNodePaint(TreeNodeAdvPaintEventArgs)

Raises the AfterNodePaint event.

Declaration

protected virtual void OnAfterNodePaint(TreeNodeAdvPaintEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvPaintEventArgs	e	An TreeNodeAdvPaintEventArgs that contains the event data.

Remarks

The OnAfterNodePaint method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnAfterNodePaint in a derived class, be sure to call the base class's OnAfterNodePaint method so that registered delegates receive the event.

OnAfterSelect(EventArgs)

Raises the AfterSelect event.

Declaration

protected virtual void OnAfterSelect(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	An EventArgs that contains the event data.

Remarks

The OnAfterSelect method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnAfterSelect in a derived class, be sure to call the base class's OnAfterSelect method so that registered delegates receive the event.

OnBackgroundColorChanged(EventArgs)

Raises the GradientBackgroundChanged event.

Declaration

protected virtual void OnBackgroundColorChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Remarks

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnGradientBackgroundChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnGradientBackgroundChanged in a derived class, be sure to call the base class's OnGradientBackgroundChanged method so that registered delegates receive the event.

OnBeforeCheck(TreeNodeAdvBeforeCheckEventArgs)

Raises the BeforeCheck event.

Declaration

protected virtual void OnBeforeCheck(TreeNodeAdvBeforeCheckEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvBeforeCheckEventArgs	e	An Syncfusion.Windows.Forms.Tools.MultiColumnTreeView.TreeViewAdvBeforeCheckEventArgs that contains the event data.

Remarks

The OnBeforeCheck method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBeforeCheck in a derived class, be sure to call the base class's OnBeforeCheck method so that registered delegates receive the event.

OnBeforeCollapse(TreeViewAdvCancelableNodeEventArgs)

Raises the BeforeCollapse event.

Declaration

protected virtual void OnBeforeCollapse(TreeViewAdvCancelableNodeEventArgs e)

Parameters

Type	Name	Description
TreeViewAdvCancelableNodeEventArgs	e	An EventArgs that contains the event data.

Remarks

The OnBeforeCollapse method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBeforeCollapse in a derived class, be sure to call the base class's OnBeforeCollapse method so that registered delegates receive the event.

OnBeforeEdit(TreeNodeAdvBeforeEditEventArgs)

Raises the BeforeEdit event.

Declaration

protected virtual void OnBeforeEdit(TreeNodeAdvBeforeEditEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvBeforeEditEventArgs	e	An EventArgs that contains the event data.

Remarks

The OnBeforeEdit method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBeforeEdit in a derived class, be sure to call the base class's OnBeforeEdit method so that registered delegates receive the event.

OnBeforeExpand(TreeViewAdvCancelableNodeEventArgs)

Raises the BeforeExpand event.

Declaration

protected virtual void OnBeforeExpand(TreeViewAdvCancelableNodeEventArgs e)

Parameters

Type	Name	Description
TreeViewAdvCancelableNodeEventArgs	e	An EventArgs that contains the event data.

Remarks

The OnBeforeExpand method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBeforeExpand in a derived class, be sure to call the base class's OnBeforeExpand method so that registered delegates receive the event.

OnBeforeNodePaint(TreeNodeAdvPaintEventArgs)

Raises the BeforeNodePaint event.

Declaration

protected virtual void OnBeforeNodePaint(TreeNodeAdvPaintEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvPaintEventArgs	e	An TreeNodeAdvPaintEventArgs that contains the event data.

Remarks

The OnBeforeNodePaint method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBeforeNodePaint in a derived class, be sure to call the base class's OnBeforeNodePaint method so that registered delegates receive the event.

OnBeforeSelect(TreeViewAdvCancelableSelectionEventArgs)

Raises the BeforeSelect event.

Declaration

protected virtual void OnBeforeSelect(TreeViewAdvCancelableSelectionEventArgs e)

Parameters

Type	Name	Description
TreeViewAdvCancelableSelectionEventArgs	e	An TreeViewAdvCancelableSelectionEventArgs that contains the event data.

Remarks

The OnBeforeSelect method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBeforeSelect in a derived class, be sure to call the base class's OnBeforeSelect method so that registered delegates receive the event.

OnBorder3DStyleChanged(EventArgs)

Raises the Border3DStyleChanged event.

Declaration

protected virtual void OnBorder3DStyleChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Remarks

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnBorder3DStyleChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBorder3DStyleChanged in a derived class, be sure to call the base class's OnBorder3DStyleChanged method so that registered delegates receive the event.

OnBorderColorChanged(EventArgs)

Raises the BorderColorChanged event.

Declaration

protected virtual void OnBorderColorChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Remarks

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnBorderColorChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBorderColorChanged in a derived class, be sure to call the base class's OnBorderColorChanged method so that registered delegates receive the event.

OnBorderSidesChanged(EventArgs)

Raises the BorderSidesChanged event.

Declaration

protected virtual void OnBorderSidesChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Remarks

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnBorderSidesChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OmBorderSidesChanged in a derived class, be sure to call the base class's OnBorderSidesChanged method so that registered delegates receive the event.

OnBorderSingleChanged(EventArgs)

Raises the BorderSingleChanged event.

Declaration

protected virtual void OnBorderSingleChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Remarks

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnBorderSingleChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBorderSingleChanged in a derived class, be sure to call the base class's OnBorderSingleChanged method so that registered delegates receive the event.

OnBorderStyleChanged(EventArgs)

Raises the BorderStyleChanged event.

Declaration

protected virtual void OnBorderStyleChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Remarks

The OnBorderStyleChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBorderStyleChanged in a derived class, be sure to call the base class's OnBorderStyleChanged method so that registered delegates receive the event.

OnColumnChanged(TreeColumnStyleChangedEventArgs)

Method called by column when it style changed.

Declaration

protected virtual void OnColumnChanged(TreeColumnStyleChangedEventArgs e)

Parameters

Type	Name	Description
TreeColumnStyleChangedEventArgs	e

OnColumnClick(TreeColumnAdv)

Method called when column catch click event.

Declaration

protected virtual void OnColumnClick(TreeColumnAdv column)

Parameters

Type	Name	Description
TreeColumnAdv	column

OnColumnDoubleClick(TreeColumnAdv)

Method called when column catch double click event.

Declaration

protected virtual void OnColumnDoubleClick(TreeColumnAdv column)

Parameters

Type	Name	Description
TreeColumnAdv	column

OnColumnMouseDown(MouseButtons, Int32, Int32, Int32, Int32, TreeColumnAdv)

Method called when column catch mouse down event.

Declaration

protected virtual void OnColumnMouseDown(MouseButtons button, int clicks, int x, int y, int delta, TreeColumnAdv column)

Parameters

Type	Name	Description
System.Windows.Forms.MouseButtons	button	One of the MouseButtons values that indicate which mouse button was pressed.
System.Int32	clicks	The number of times a mouse button was pressed.
System.Int32	x	The x-coordinate of a mouse click, in pixels.
System.Int32	y	The y-coordinate of a mouse click, in pixels.
System.Int32	delta	A signed count of the number of detents the wheel has rotated.
TreeColumnAdv	column

OnColumnMouseUp(MouseButtons, Int32, Int32, Int32, Int32, TreeColumnAdv)

Method called when column catch mouse up event.

Declaration

protected virtual void OnColumnMouseUp(MouseButtons button, int clicks, int x, int y, int delta, TreeColumnAdv column)

Parameters

Type	Name	Description
System.Windows.Forms.MouseButtons	button	One of the MouseButtons values that indicate which mouse button was pressed.
System.Int32	clicks	The number of times a mouse button was pressed.
System.Int32	x	The x-coordinate of a mouse click, in pixels.
System.Int32	y	The y-coordinate of a mouse click, in pixels.
System.Int32	delta	A signed count of the number of detents the wheel has rotated.
TreeColumnAdv	column

OnColumnResized(TreeColumnAdv, Int32, Int32)

Method called when column catch resized event.

Declaration

protected virtual void OnColumnResized(TreeColumnAdv column, int prevWidth, int currentWidth)

Parameters

Type	Name	Description
TreeColumnAdv	column
System.Int32	prevWidth
System.Int32	currentWidth

OnColumnResizing(TreeColumnAdv, Int32, Int32)

Method called when column catch resizing event.

Declaration

protected virtual void OnColumnResizing(TreeColumnAdv column, int prevPos, int currentPos)

Parameters

Type	Name	Description
TreeColumnAdv	column
System.Int32	prevPos
System.Int32	currentPos

OnColumnSelected(TreeViewColumnSelectedChangedEventArgs)

Method called when selected column changed.

Declaration

protected virtual void OnColumnSelected(TreeViewColumnSelectedChangedEventArgs e)

Parameters

Type	Name	Description
TreeViewColumnSelectedChangedEventArgs	e

OnDataSourceChanged(Object, Object)

Occurs when DataSource is changed

Declaration

protected virtual void OnDataSourceChanged(object oldValue, object newValue)

Parameters

Type	Name	Description
System.Object	oldValue
System.Object	newValue

OnDefaultCollapseImageIndexChanged()

Raises the DefaultCollapseImageIndexChanged event.

Declaration

protected virtual void OnDefaultCollapseImageIndexChanged()

OnDefaultExpandImageIndexChanged()

Raises the DefaultExpandImageIndexChanged event.

Declaration

protected virtual void OnDefaultExpandImageIndexChanged()

OnDoubleClick(EventArgs)

Declaration

protected override void OnDoubleClick(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

OnDragDrop(DragEventArgs)

Declaration

protected override void OnDragDrop(DragEventArgs drgevent)

Parameters

Type	Name	Description
System.Windows.Forms.DragEventArgs	drgevent

OnDragEnter(DragEventArgs)

Declaration

protected override void OnDragEnter(DragEventArgs drgevent)

Parameters

Type	Name	Description
System.Windows.Forms.DragEventArgs	drgevent

OnDragLeave(EventArgs)

Declaration

protected override void OnDragLeave(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

OnDragOver(DragEventArgs)

Declaration

protected override void OnDragOver(DragEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.DragEventArgs	e

Overrides

ScrollControl.OnDragOver(DragEventArgs)

OnEditCancelled(TreeNodeAdvEditEventArgs)

Raises the edit cancel event.

Declaration

protected virtual void OnEditCancelled(TreeNodeAdvEditEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvEditEventArgs	e	An EventArgs that contains the event data.

Remarks

The OnEditCancelled method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnEditCancelled in a derived class, be sure to call the base class's OnEditCancelled method so that registered delegates receive the event.

OnEnter(EventArgs)

Declaration

protected override void OnEnter(EventArgs arg)

Parameters

Type	Name	Description
System.EventArgs	arg

Overrides

ScrollControl.OnEnter(EventArgs)

OnFontChanged(EventArgs)

Font changed

Declaration

protected override void OnFontChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

OnGetChildNodes(QueryChildItemsInfoEventArgs)

Raises the event.

Declaration

protected virtual void OnGetChildNodes(QueryChildItemsInfoEventArgs e)

Parameters

Type	Name	Description
QueryChildItemsInfoEventArgs	e	An that contains the event data.

Remarks

The OnBeforeCheck method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBeforeCheck in a derived class, be sure to call the base class's OnGetChildNodes method so that registered delegates receive the event.

OnGetColumnData(QueryCellValueInfoEventArgs)

Raises the event.

Declaration

protected virtual void OnGetColumnData(QueryCellValueInfoEventArgs e)

Parameters

Type	Name	Description
QueryCellValueInfoEventArgs	e	An that contains the event data.

Remarks

The OnBeforeCheck method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnBeforeCheck in a derived class, be sure to call the base class's OnGetColumnData method so that registered delegates receive the event.

OnGiveFeedback(GiveFeedbackEventArgs)

Declaration

protected override void OnGiveFeedback(GiveFeedbackEventArgs args)

Parameters

Type	Name	Description
System.Windows.Forms.GiveFeedbackEventArgs	args

OnGotFocus(EventArgs)

Declaration

protected override void OnGotFocus(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Overrides

ScrollControl.OnGotFocus(EventArgs)

OnHandleCreated(EventArgs)

Declaration

protected override void OnHandleCreated(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Overrides

ScrollControl.OnHandleCreated(EventArgs)

OnHScrollBarValueChanged(Object, EventArgs)

Declaration

protected override void OnHScrollBarValueChanged(object sender, EventArgs e)

Parameters

Type	Name	Description
System.Object	sender
System.EventArgs	e

Overrides

ScrollControl.OnHScrollBarValueChanged(Object, EventArgs)

OnInvalidated(InvalidateEventArgs)

Declaration

protected override void OnInvalidated(InvalidateEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.InvalidateEventArgs	e

Overrides

ScrollControl.OnInvalidated(InvalidateEventArgs)

OnItemDrag(ItemDragEventArgs)

Raises the ItemDrag event.

Declaration

protected virtual void OnItemDrag(ItemDragEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.ItemDragEventArgs	e	An ItemDragEventArgs that contains the event data.

Remarks

The OnItemDrag method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnItemDrag in a derived class, be sure to call the base class's OnItemDrag method so that registered delegates receive the event.

OnKeyDown(KeyEventArgs)

Declaration

protected override void OnKeyDown(KeyEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.KeyEventArgs	e

OnLeave(EventArgs)

Declaration

protected override void OnLeave(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Overrides

ScrollControl.OnLeave(EventArgs)

OnLostFocus(EventArgs)

Declaration

protected override void OnLostFocus(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Overrides

ScrollControl.OnLostFocus(EventArgs)

OnMouseDown(MouseEventArgs)

Declaration

protected override void OnMouseDown(MouseEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.MouseEventArgs	e

Overrides

ScrollControl.OnMouseDown(MouseEventArgs)

OnMouseEnter(EventArgs)

Declaration

protected override void OnMouseEnter(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

OnMouseHover(EventArgs)

Declaration

protected override void OnMouseHover(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Overrides

ScrollControl.OnMouseHover(EventArgs)

OnMouseLeave(EventArgs)

Declaration

protected override void OnMouseLeave(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Overrides

ScrollControl.OnMouseLeave(EventArgs)

OnMouseMove(MouseEventArgs)

Declaration

protected override void OnMouseMove(MouseEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.MouseEventArgs	e

Overrides

ScrollControl.OnMouseMove(MouseEventArgs)

OnMouseUp(MouseEventArgs)

Declaration

protected override void OnMouseUp(MouseEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.MouseEventArgs	e

Overrides

ScrollControl.OnMouseUp(MouseEventArgs)

OnMouseWheel(MouseEventArgs)

Declaration

protected override void OnMouseWheel(MouseEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.MouseEventArgs	e

Overrides

ScrollControl.OnMouseWheel(MouseEventArgs)

OnNcCalcSize(ref Rectangle)

Declaration

protected override void OnNcCalcSize(ref Rectangle client)

Parameters

Type	Name	Description
System.Drawing.Rectangle	client

Overrides

ScrollControl.OnNcCalcSize(ref Rectangle)

OnNCPaint(NCPaintEventArgs)

Method draws non-client area of an MultiColumnTreeView.

Declaration

protected override void OnNCPaint(NCPaintEventArgs ncEventArgs)

Parameters

Type	Name	Description
NCPaintEventArgs	ncEventArgs	EventArgs with Non-client info for drawing.

Overrides

ScrollControl.OnNCPaint(NCPaintEventArgs)

OnNodeBackgroundPaint(TreeNodeAdvPaintBackgroundEventArgs)

Raises the NodeBackgroundPaint event.

Declaration

protected virtual void OnNodeBackgroundPaint(TreeNodeAdvPaintBackgroundEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvPaintBackgroundEventArgs	e	An EventArgs that contains the event data.

Remarks

The OnNodeBackgroundPaint method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnNodeBackgroundPaint in a derived class, be sure to call the base class's OnNodeBackgroundPaint method so that registered delegates receive the event.

OnNodeEditorValidated(TreeNodeAdvEditEventArgs)

Raises the NodeEditorValidated event.

Declaration

protected virtual void OnNodeEditorValidated(TreeNodeAdvEditEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvEditEventArgs	e	An EventArgs that contains the event data.

Remarks

The OnNodeEditorValidated method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnNodeEditorValidated in a derived class, be sure to call the base class's OnNodeEditorValidated method so that registered delegates receive the event.

OnNodeEditorValidateString(TreeNodeAdvCancelableEditEventArgs)

Raises the NodeEditorValidateString event.

Declaration

protected virtual void OnNodeEditorValidateString(TreeNodeAdvCancelableEditEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvCancelableEditEventArgs	e	An EventArgs that contains the event data.

Remarks

The OnNodeEditorValidateString method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnNodeEditorValidateString in a derived class, be sure to call the base class's OnNodeEditorValidateString method so that registered delegates receive the event.

OnNodeEditorValidating(TreeNodeAdvCancelableEditEventArgs)

Raises the NodeEditorValidating event.

Declaration

protected virtual void OnNodeEditorValidating(TreeNodeAdvCancelableEditEventArgs e)

Parameters

Type	Name	Description
TreeNodeAdvCancelableEditEventArgs	e	An EventArgs that contains the event data.

Remarks

The OnNodeEditorValidating method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnNodeEditorValidating in a derived class, be sure to call the base class's OnNodeEditorValidating method so that registered delegates receive the event.

OnNodeStateImageListChanged()

Raises the NodeStateImageListChanged event.

Declaration

protected virtual void OnNodeStateImageListChanged()

OnPaint(PaintEventArgs)

Declaration

protected override void OnPaint(PaintEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.PaintEventArgs	e

Overrides

ScrollControl.OnPaint(PaintEventArgs)

OnPaintBackground(PaintEventArgs)

Declaration

protected override void OnPaintBackground(PaintEventArgs pevent)

Parameters

Type	Name	Description
System.Windows.Forms.PaintEventArgs	pevent

OnPrint(Object, PrintPageEventArgs)

Declaration

protected virtual void OnPrint(object sender, PrintPageEventArgs e)

Parameters

Type	Name	Description
System.Object	sender
System.Drawing.Printing.PrintPageEventArgs	e

OnQueryContinueDrag(QueryContinueDragEventArgs)

Declaration

protected override void OnQueryContinueDrag(QueryContinueDragEventArgs args)

Parameters

Type	Name	Description
System.Windows.Forms.QueryContinueDragEventArgs	args

OnRightToLeftChanged(EventArgs)

Declaration

protected override void OnRightToLeftChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Overrides

ScrollControl.OnRightToLeftChanged(EventArgs)

OnScrollbarsVisibleChanged(EventArgs)

Declaration

protected override void OnScrollbarsVisibleChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Overrides

ScrollControl.OnScrollbarsVisibleChanged(EventArgs)

OnSelectionModeChanged()

Declaration

protected virtual void OnSelectionModeChanged()

OnSetCursor(ref Message)

Declaration

protected override void OnSetCursor(ref Message m)

Parameters

Type	Name	Description
System.Windows.Forms.Message	m

Overrides

ScrollControl.OnSetCursor(ref Message)

OnSizeChanged(EventArgs)

Declaration

protected override void OnSizeChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Overrides

ScrollControl.OnSizeChanged(EventArgs)

OnThemeChanged(EventArgs)

Raises the ThemeChanged event.

Declaration

protected virtual void OnThemeChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e	An EventArgs that contains the event data.

Remarks

The OnThemeChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors: When overriding OnThemeChanged in a derived class, be sure to call the base class's OnThemeChanged method so that registered delegates receive the event.

OnUpdatingChanged(EventArgs)

Declaration

protected override void OnUpdatingChanged(EventArgs e)

Parameters

Type	Name	Description
System.EventArgs	e

Overrides

ScrollControl.OnUpdatingChanged(EventArgs)

OnVScrollBarValueChanged(Object, EventArgs)

Declaration

protected override void OnVScrollBarValueChanged(object sender, EventArgs e)

Parameters

Type	Name	Description
System.Object	sender
System.EventArgs	e

Overrides

ScrollControl.OnVScrollBarValueChanged(Object, EventArgs)

PaintChildrenBackground(Graphics, Control, Rectangle)

Declaration

protected virtual bool PaintChildrenBackground(Graphics graphics, Control control, Rectangle clipRect)

Parameters

Type	Name	Description
System.Drawing.Graphics	graphics
System.Windows.Forms.Control	control
System.Drawing.Rectangle	clipRect

Returns

Type	Description
System.Boolean

PointToNode(Point)

Returns the tree node at the specified point in client co-ordinates.

Declaration

public TreeNodeAdv PointToNode(Point pt)

Parameters

Type	Name	Description
System.Drawing.Point	pt	The point in client co-ordinates.

Returns

Type	Description
TreeNodeAdv	A TreeNodeAdv.

Print()

Begins the printing process of the MultiColumnTreeView.

Declaration

public void Print()

PrintPreview()

Begins the printing process of the MultiColumnTreeView and shows MultiColumnTreeView before printing.

Declaration

public void PrintPreview()

ProcessDialogKey(Keys)

Declaration

protected override bool ProcessDialogKey(Keys keyData)

Parameters

Type	Name	Description
System.Windows.Forms.Keys	keyData

Returns

Type	Description
System.Boolean

ProcessMouseBasedSelection(MouseEventArgs)

This method indicates that the multipleNodes can be selected with mouseDown and drag .

Declaration

protected virtual void ProcessMouseBasedSelection(MouseEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.MouseEventArgs	e

RaiseItemDrag(ItemDragEventArgs)

Calls the OnItemDrag(ItemDragEventArgs) to raise the ItemDrag event.

Declaration

public void RaiseItemDrag(ItemDragEventArgs e)

Parameters

Type	Name	Description
System.Windows.Forms.ItemDragEventArgs	e	An ItemDragEventArgs that contains the event data.

RaiseNodeDoubleClick(TreeNodeAdv, MouseButtons, Int32, Int32, Int32, Int32)

Declaration

protected void RaiseNodeDoubleClick(TreeNodeAdv hitnode, MouseButtons button, int clicks, int x, int y, int delta)

Parameters

Type	Name	Description
TreeNodeAdv	hitnode
System.Windows.Forms.MouseButtons	button
System.Int32	clicks
System.Int32	x
System.Int32	y
System.Int32	delta

RaiseNodeHotTracked()

Declaration

protected void RaiseNodeHotTracked()

RaiseNodeSingleClick(TreeNodeAdv, MouseButtons, Int32, Int32, Int32, Int32)

Declaration

protected void RaiseNodeSingleClick(TreeNodeAdv hitnode, MouseButtons button, int clicks, int x, int y, int delta)

Parameters

Type	Name	Description
TreeNodeAdv	hitnode
System.Windows.Forms.MouseButtons	button
System.Int32	clicks
System.Int32	x
System.Int32	y
System.Int32	delta

Refresh()

Forces the control to invalidate its client area and immediately redraw any child controls.

Declaration

public override void Refresh()

RefreshFilter()

Refreshes the view when the filtering is applied through Filter delegate.

Declaration

public void RefreshFilter()

ResetBackColor()

Reset the BackColor property value to default value.

Declaration

public override void ResetBackColor()

ResetBackgroundColor()

Declaration

protected void ResetBackgroundColor()

ResetBorderColor()

Declaration

protected void ResetBorderColor()

ResetClosedImgIndex()

Reset the ClosedImgIndex property value to default value.

Declaration

public void ResetClosedImgIndex()

ResetColumnsHeaderBackground()

Declaration

protected void ResetColumnsHeaderBackground()

ResetInactiveSelectedNodeBackground()

Declaration

protected void ResetInactiveSelectedNodeBackground()

ResetInactiveSelectedNodeForeColor()

Declaration

protected void ResetInactiveSelectedNodeForeColor()

ResetInteractiveCheckBoxes()

Reset the InteractiveCheckBoxes property value to default value.

Declaration

public void ResetInteractiveCheckBoxes()

ResetItemHeight()

Reset the ItemHeight property value to default value.

Declaration

public void ResetItemHeight()

ResetLineColor()

Declaration

protected void ResetLineColor()

ResetMetroColor()

Reset the MetroColor property value to default value.

Declaration

public void ResetMetroColor()

ResetNoChildrenImgIndex()

Reset the NoChildrenImgIndex property value to default value.

Declaration

public void ResetNoChildrenImgIndex()

ResetNodeHoverColor()

Reset the NodeHoverColor property value to default value.

Declaration

public void ResetNodeHoverColor()

ResetOpenImgIndex()

Reset the OpenImgIndex property value to default value.

Declaration

public void ResetOpenImgIndex()

ResetSelectedNodeBackground()

Declaration

protected void ResetSelectedNodeBackground()

ResetSelectedNodeForeColor()

Declaration

protected void ResetSelectedNodeForeColor()

ResetShowCheckBoxes()

Reset the ShowCheckBoxes property value to default value.

Declaration

public void ResetShowCheckBoxes()

ResetShowOptionButtons()

Reset the ShowOptionButtons property value to default value.

Declaration

public void ResetShowOptionButtons()

ResetShowPlusMinus()

Reset the ShowPlusMinus property value to default value.

Declaration

public void ResetShowPlusMinus()

ResetStyle()

Reset the Style property value to default value.

Declaration

public void ResetStyle()

ResetThemesEnabled()

Declaration

protected void ResetThemesEnabled()

RowIndexToNode(Int32)

Returns the tree node at the specified row index.

Declaration

public TreeNodeAdv RowIndexToNode(int rowIndex)

Parameters

Type	Name	Description
System.Int32	rowIndex	The row index.

Returns

Type	Description
TreeNodeAdv	A TreeNodeAdv.

SetBoundsCore(Int32, Int32, Int32, Int32, BoundsSpecified)

Declaration

protected override void SetBoundsCore(int x, int y, int width1, int height, BoundsSpecified specified)

Parameters

Type	Name	Description
System.Int32	x
System.Int32	y
System.Int32	width1
System.Int32	height
System.Windows.Forms.BoundsSpecified	specified

SetDefaultSelectionOnEnter()

Selects a default node (the first visible one) if the tree did not have anything focused.

Declaration

protected virtual void SetDefaultSelectionOnEnter()

SetSelectedNode(ArrayList, ArrayList, TreeViewAdvAction, Boolean, Boolean)

This method is used internally by the tree control to add and remove selected nodes. This method will fire the appropriate selection events to let the user cancel the selection, etc.

Declaration

protected bool SetSelectedNode(ArrayList nodesToAdd, ArrayList nodesToRemove, TreeViewAdvAction action, bool fireEvent, bool forceRemove)

Parameters

Type	Name	Description
System.Collections.ArrayList	nodesToAdd	The nodes to add.
System.Collections.ArrayList	nodesToRemove	The nodes to remove.
TreeViewAdvAction	action	Specifies what kind of action triggered this call.
System.Boolean	fireEvent	Indicates whether selection events should be fired before and after this selection change.
System.Boolean	forceRemove	Indicates whether the specified nodes to be removed from selection will be removed even if the user cancelled the selection change the BeforeSelect event handler.

Returns

Type	Description
System.Boolean	True if the selection changed; false otherwise.

SetSelectionBaseNode(TreeNodeAdv)

Declaration

protected void SetSelectionBaseNode(TreeNodeAdv node)

Parameters

Type	Name	Description
TreeNodeAdv	node

ShouldSerializeBackColor()

Determines if the BackColor property was modified.

Declaration

protected bool ShouldSerializeBackColor()

Returns

Type	Description
System.Boolean	Returns bool property

ShouldSerializeBackgroundColor()

Declaration

protected bool ShouldSerializeBackgroundColor()

Returns

Type	Description
System.Boolean

ShouldSerializeBorderColor()

Declaration

protected bool ShouldSerializeBorderColor()

Returns

Type	Description
System.Boolean

ShouldSerializeClosedImgIndex()

Declaration

protected bool ShouldSerializeClosedImgIndex()

Returns

Type	Description
System.Boolean

ShouldSerializeColumns()

Declaration

protected bool ShouldSerializeColumns()

Returns

Type	Description
System.Boolean

ShouldSerializeColumnsHeaderBackground()

Declaration

protected bool ShouldSerializeColumnsHeaderBackground()

Returns

Type	Description
System.Boolean

ShouldSerializeInactiveSelectedNodeBackground()

Declaration

protected bool ShouldSerializeInactiveSelectedNodeBackground()

Returns

Type	Description
System.Boolean

ShouldSerializeInactiveSelectedNodeForeColor()

Declaration

protected bool ShouldSerializeInactiveSelectedNodeForeColor()

Returns

Type	Description
System.Boolean

ShouldSerializeInteractiveCheckBoxes()

Declaration

protected bool ShouldSerializeInteractiveCheckBoxes()

Returns

Type	Description
System.Boolean

ShouldSerializeItemHeight()

Declaration

protected bool ShouldSerializeItemHeight()

Returns

Type	Description
System.Boolean

ShouldSerializeLineColor()

Declaration

protected bool ShouldSerializeLineColor()

Returns

Type	Description
System.Boolean

ShouldSerializeNoChildrenImgIndex()

Declaration

protected bool ShouldSerializeNoChildrenImgIndex()

Returns

Type	Description
System.Boolean

ShouldSerializeOpenImgIndex()

Declaration

protected bool ShouldSerializeOpenImgIndex()

Returns

Type	Description
System.Boolean

ShouldSerializeSelectedNodeBackground()

Declaration

protected bool ShouldSerializeSelectedNodeBackground()

Returns

Type	Description
System.Boolean

ShouldSerializeSelectedNodeForeColor()

Declaration

protected bool ShouldSerializeSelectedNodeForeColor()

Returns

Type	Description
System.Boolean

ShouldSerializeShowCheckBoxes()

Declaration

protected bool ShouldSerializeShowCheckBoxes()

Returns

Type	Description
System.Boolean

ShouldSerializeShowOptionButtons()

Declaration

protected bool ShouldSerializeShowOptionButtons()

Returns

Type	Description
System.Boolean

ShouldSerializeShowPlusMinus()

Declaration

protected bool ShouldSerializeShowPlusMinus()

Returns

Type	Description
System.Boolean

ShouldSerializeThemesEnabled()

Declaration

protected bool ShouldSerializeThemesEnabled()

Returns

Type	Description
System.Boolean

ThemedPaintBackground(Graphics, Rectangle, Rectangle)

Declaration

protected virtual void ThemedPaintBackground(Graphics graphics, Rectangle rect, Rectangle clip)

Parameters

Type	Name	Description
System.Drawing.Graphics	graphics
System.Drawing.Rectangle	rect
System.Drawing.Rectangle	clip

ToImage()

Gets the image of MultiColumnTreeView.

Declaration

public Image ToImage()

Returns

Type	Description
System.Drawing.Image	Returns the image.

UpdateTips(Boolean)

Declaration

protected virtual void UpdateTips(bool mouseHover)

Parameters

Type	Name	Description
System.Boolean	mouseHover

WndProc(ref Message)

Declaration

protected override void WndProc(ref Message m)

Parameters

Type	Name	Description
System.Windows.Forms.Message	m

Overrides

ScrollControl.WndProc(ref Message)

Events

AfterCheck

Occurs after a node is checked.

Declaration

public event TreeNodeAdvEventHandler AfterCheck

Event Type

Type	Description
TreeNodeAdvEventHandler

Remarks

This event will be fired when the node's CheckState property has changed or when a new node has been Optioned.

You could alternatively listen to the individual node's CheckStateChanged event.

AfterCollapse

Occurs after a node has collapsed.

Declaration

public event TreeViewAdvNodeEventHandler AfterCollapse

Event Type

Type	Description
TreeViewAdvNodeEventHandler

Remarks

Handle this event when you want to do some processing of the specified node after it's collapsed.

AfterExpand

Occurs after a node is expanded.

Declaration

public event TreeViewAdvNodeEventHandler AfterExpand

Event Type

Type	Description
TreeViewAdvNodeEventHandler

Remarks

Handle this event when you want to do some processing of the specified node after it's expanded.

AfterInteractiveChecks

Declaration

public event TreeNodeAdvEventHandler AfterInteractiveChecks

Event Type

Type	Description
TreeNodeAdvEventHandler

AfterNodePaint

Occurs after a node is being painted when the OwnerDrawNodes property is set to true.

Declaration

public event TreeNodeAdvPaintEventHandler AfterNodePaint

Event Type

Type	Description
TreeNodeAdvPaintEventHandler

Remarks

This event is ideal for custom drawing portions of the node in addition to the default drawing. The Handled properties of the event args can be ignored for this event.

AfterSelect

Occurs after a node is selected.

Declaration

public event EventHandler AfterSelect

Event Type

Type	Description
System.EventHandler

Remarks

You can determine the selected node using the SelectedNode property.

BackgroundColorChanged

Occurs when the tree's GradientBackground is changed.

Declaration

public event EventHandler BackgroundColorChanged

Event Type

Type	Description
System.EventHandler

BeforeCheck

Occurs before a node's checkbox is checked.

Declaration

public event TreeViewAdvBeforeCheckEventHandler BeforeCheck

Event Type

Type	Description
TreeViewAdvBeforeCheckEventHandler

BeforeCollapse

Occurs before a node has collapsed.

Declaration

public event TreeViewAdvCancelableNodeEventHandler BeforeCollapse

Event Type

Type	Description
TreeViewAdvCancelableNodeEventHandler

Remarks

Handle this event when you want to do some processing of the specified node before it's collapsed.

BeforeEdit

Occures before a node gets into the edit mode.

Declaration

public event TreeViewAdvBeforeEditEventHandler BeforeEdit

Event Type

Type	Description
TreeViewAdvBeforeEditEventHandler

BeforeExpand

Occurs before a node is expanded.

Declaration

public event TreeViewAdvCancelableNodeEventHandler BeforeExpand

Event Type

Type	Description
TreeViewAdvCancelableNodeEventHandler

Remarks

Handle this event when you want to do some processing of the specified node before it's expanded. Use this event when you set the LoadOnDemand property to true to add child nodes to the specified node before it is expanded.

BeforeNodePaint

Occurs before a node is being painted when the OwnerDrawNodes property is set to true.

Declaration

public event TreeNodeAdvPaintEventHandler BeforeNodePaint

Event Type

Type	Description
TreeNodeAdvPaintEventHandler

Remarks

Handle this event when you want to draw the node yourself. If you set the Handled property to true the MultiColumnTreeView assumes that you have drawn all the contents of the node and no additional drawing will be done by the MultiColumnTreeView. If you leave it to false the MultiColumnTreeView will automatically draw the usual contents of the node. Do not draw the background of the node here. Otherwise it will draw over the vertical line. Use the NodeBackgroundPaint for painting the background.

BeforeSelect

Occurs before a node is selected.

Declaration

public event TreeNodeAdvBeforeSelectEventHandler BeforeSelect

Event Type

Type	Description
TreeNodeAdvBeforeSelectEventHandler

Remarks

The collection in the SelectedNodes property is both read-only and fixed size.

Border3DStyleChanged

Occurs when the tree's Border3DStyle is changed.

Declaration

public event EventHandler Border3DStyleChanged

Event Type

Type	Description
System.EventHandler

BorderColorChanged

Occurs when the tree's BorderColor is changed.

Declaration

public event EventHandler BorderColorChanged

Event Type

Type	Description
System.EventHandler

BorderSidesChanged

Occurs when the tree's BorderSides is changed.

Declaration

public event EventHandler BorderSidesChanged

Event Type

Type	Description
System.EventHandler

BorderSingleChanged

Occurs when the tree's Border2DStyle is changed.

Declaration

public event EventHandler BorderSingleChanged

Event Type

Type	Description
System.EventHandler

BorderStyleChanged

Occurs when the tree's BorderStyle is changed.

Declaration

public event EventHandler BorderStyleChanged

Event Type

Type	Description
System.EventHandler

ColumnClick

Occurs when the tree's column is clicked.

Declaration

public event TreeColumnChangedEventHandler ColumnClick

Event Type

Type	Description
TreeColumnChangedEventHandler

ColumnDoubleClick

Occurs when the tree's column is double clicked.

Declaration

public event TreeColumnChangedEventHandler ColumnDoubleClick

Event Type

Type	Description
TreeColumnChangedEventHandler

ColumnHighlighted

Occurs when the tree's selected column changed.

Declaration

public event TreeColumnChangedEventHandler ColumnHighlighted

Event Type

Type	Description
TreeColumnChangedEventHandler

ColumnMouseDown

Occurs when the mouse Pressed on the tree's Column .

Declaration

public event TreeColumnAdvMouseEventHandler ColumnMouseDown

Event Type

Type	Description
TreeColumnAdvMouseEventHandler

ColumnMouseUp

Occurs when the mouse released on the tree's Column .

Declaration

public event TreeColumnAdvMouseEventHandler ColumnMouseUp

Event Type

Type	Description
TreeColumnAdvMouseEventHandler

ColumnResized

Occurs when the tree's column is resized.

Declaration

public event TreeColumnResizedEventHandler ColumnResized

Event Type

Type	Description
TreeColumnResizedEventHandler

ColumnResizing

Occurs when resizing the tree's column.

Declaration

public event TreeColumnResizeEventHandler ColumnResizing

Event Type

Type	Description
TreeColumnResizeEventHandler

DataSourceChanged

Occurs when DataSource is changed.

Declaration

public event DataSourceChangedEventHandler DataSourceChanged

Event Type

Type	Description
DataSourceChangedEventHandler

DefaultCollapseImageIndexChanged

Occurs when DefaultCollapseImageIndex is changed.

Declaration

public event EventHandler DefaultCollapseImageIndexChanged

Event Type

Type	Description
System.EventHandler

DefaultExpandImageIndexChanged

Occurs when DefaultExpandImageIndex is changed.

Declaration

public event EventHandler DefaultExpandImageIndexChanged

Event Type

Type	Description
System.EventHandler

EditCancelled

Occurs after the Editing mode gets cancelled by Escape key.

Declaration

public event TreeNodeAdvEditEventHandler EditCancelled

Event Type

Type	Description
TreeNodeAdvEditEventHandler

ItemDrag

Occurs when the user begins a drag of one or more items in the tree view control.

Declaration

public event ItemDragEventHandler ItemDrag

Event Type

Type	Description
System.Windows.Forms.ItemDragEventHandler

Remarks

The Item property in the argument is an array of MultiColumnTreeView nodes that are currently selected.

You can choose to initiate an ole drag-and-drop operation in this event handler.

Examples

To initiate an ole drag-drop in this event handler:

// MultiColumnTreeView.ItemDrag event listener
private void treeViewAdv1_ItemDrag(object sender, System.Windows.Forms.ItemDragEventArgs e)
{
 // Begin a drag and drop operation of the selected nodes (or some other data).
 TreeNodeAdv[] nodes = e.Item as TreeNodeAdv[];
 DragDropEffects result = this.DoDragDrop(nodes, DragDropEffects.Copy | DragDropEffects.Move);
 // more app logic based on result...
}

' MultiColumnTreeView.ItemDrag event listener
Private Sub treeViewAdv1_ItemDrag(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemDragEventArgs) Handles treeViewAdv2.ItemDrag
' Begin a drag and drop operation of the selected nodes (or some other data).
Dim nodes As TreeNodeAdv() = CType(e.Item, TreeNodeAdv())
Dim result As DragDropEffects = Me.DoDragDrop(nodes, DragDropEffects.Copy Or DragDropEffects.Move)
' more app logic based on result...
End Sub 'treeViewAdv1_ItemDrag '

Also take a look at our ..\Tools\Samples\Tree Package\TreeViewAdvDragDrop sample for more information on how to turn on drag-drop cues.

NodeBackgroundPaint

Occurs to draw the background of a node if the OwnerDrawNodesBackground property is set.

Declaration

public event TreeNodeAdvPaintBackgroundEventHandler NodeBackgroundPaint

Event Type

Type	Description
TreeNodeAdvPaintBackgroundEventHandler

Remarks

Handle this event when you want to draw the background of the node yourself.

NodeEditorValidated

Occurs after the newly entered text in the Node editor gets stored.

Declaration

public event TreeNodeAdvEditEventHandler NodeEditorValidated

Event Type

Type	Description
TreeNodeAdvEditEventHandler

NodeEditorValidateString

Occurs when the text entered by the user changes in the Node editor control.

Declaration

public event TreeNodeAdvCancelableEditEventHandler NodeEditorValidateString

Event Type

Type	Description
TreeNodeAdvCancelableEditEventHandler

NodeEditorValidating

Occurs before the newly entered text in the Node editor gets stored.

Declaration

public event TreeNodeAdvCancelableEditEventHandler NodeEditorValidating

Event Type

Type	Description
TreeNodeAdvCancelableEditEventHandler

NodeHotTrackChanged

Represents an event will be triggered when mouse hover occurs in tree nodes and it returns the particular node details which is currently being pointed from its arguement.

Declaration

public event TreeViewAdvNodeEventHandler NodeHotTrackChanged

Event Type

Type	Description
TreeViewAdvNodeEventHandler

NodeMouseClick

Represents an event will be triggered if single click occurs on TreeNodeAdv.

Declaration

public event TreeNodeAdvMouseClickArgs NodeMouseClick

Event Type

Type	Description
TreeNodeAdvMouseClickArgs

NodeMouseDoubleClick

Represents an event will be triggered if double click occurs on TreeNodeAdv.

Declaration

public event TreeNodeAdvMouseClickArgs NodeMouseDoubleClick

Event Type

Type	Description
TreeNodeAdvMouseClickArgs

NodeStateImageListChanged

Occurs when NodeStateImageList is changed.

Declaration

public event EventHandler NodeStateImageListChanged

Event Type

Type	Description
System.EventHandler

OnNodeAfterFound

Represents an event will be triggered when treenode match is found based on search string.

Declaration

public event TreeViewOnAfterFindArgs OnNodeAfterFound

Event Type

Type	Description
TreeViewOnAfterFindArgs

OnNodeBeforeFind

Represents an event will be triggered once treenode match yet to be found based on search string.

Declaration

public event TreeViewOnBeforeFindArgs OnNodeBeforeFind

Event Type

Type	Description
TreeViewOnBeforeFindArgs

OnNodeReplaced

Represents an event will be triggered on matched treenode text after gets replaced based on search string.

Declaration

public event TreeViewOnReplacedArgs OnNodeReplaced

Event Type

Type	Description
TreeViewOnReplacedArgs

OnNodeReplacing

Represents an event will be triggered on matched treenode text is being replaced based on search string.

Declaration

public event TreeViewOnReplacingArgs OnNodeReplacing

Event Type

Type	Description
TreeViewOnReplacingArgs

PaddingChanged

Represents an event will be triggered when the padding is changed.

Declaration

public event EventHandler PaddingChanged

Event Type

Type	Description
System.EventHandler

QueryCellValue

Declaration

public event GetCellValueEventHandler QueryCellValue

Event Type

Type	Description
GetCellValueEventHandler

QueryChildItems

Handle this event allows you to assign the ChildMember for the given parent nodes.

Declaration

public event QueryChildItemsEventHandler QueryChildItems

Event Type

Type	Description
QueryChildItemsEventHandler

Remarks

This event is used to provide lists of root and child node details to populate the MultiColumnTreeView and it occurs after adding of each Nodes in its own Nodes collection. We must specify the event data properly to populate a valid MultiColumnTreeView.

ThemeChanged

Occurs when the ThemesEnabled property changes.

Declaration

public event EventHandler ThemeChanged

Event Type

Type	Description
System.EventHandler

ThemeNameChanged

Occurs when theme name of the ContextMenuStripEx has changed.

Declaration

public event ThemeChangedEventHandler ThemeNameChanged

Event Type

Type	Description
ThemeChangedEventHandler

Explicit Interface Implementations

INonClientPaintingSupport.NonClientPaint(PaintEventArgs, Rectangle, Rectangle)

Declaration

IntPtr INonClientPaintingSupport.NonClientPaint(PaintEventArgs e, Rectangle displayRect, Rectangle rcInScreen)

Parameters

Type	Name	Description
System.Windows.Forms.PaintEventArgs	e	The PaintEventArgs using this to draw the non client area.
System.Drawing.Rectangle	displayRect	The control's window bounds into which to draw. Left and Top are usually zero.
System.Drawing.Rectangle	rcInScreen	The control's bounds in screen co-ordinates.

Returns

Type	Description
System.IntPtr	HRgn (as IntPtr) that excludes the region you just drew in the displayRect.

IProvideCustomContextMenuPositionalInformation.GetMenuPositionForKeyboardInvoke()

Implement this interface to support keyboard based (Shift+F10) context menu invocation. The context menu will then appear near the selected node.

Declaration

Point IProvideCustomContextMenuPositionalInformation.GetMenuPositionForKeyboardInvoke()

Returns

Type	Description
System.Drawing.Point

Remarks

The PopupMenu in the XPMenus framework will then call this method to determine the location for popup.

IVisualStyle.VisualTheme

Gets or sets the VisualTheme of the ContextMenuStripEx control.

Declaration

string IVisualStyle.VisualTheme { get; set; }

Returns

Type	Description
System.String

IThemeProvider.BaseThemeName

Gets or sets the BaseTheme name of the theme

Declaration

string IThemeProvider.BaseThemeName { get; set; }

Returns

Type	Description
System.String

IThemeProvider.ControlName

Gets the name of the control.

Declaration

string IThemeProvider.ControlName { get; }

Returns

Type	Description
System.String

Implements

System.IDisposable

ICancelModeProvider

ISplitterPaneSupport

IScrollBarWrapperContainer

ISupportUpdating

ISupportIntelliMouse

IQueryFocusInside

System.ComponentModel.ISupportInitialize

IThemedControl

INonClientPaintingSupport

IProvideCustomContextMenuPositionalInformation

IDragDispatcher

ISuppportHistory

IThemeProvider

IVisualStyle

WinForms- v20.4.0.48

Class MultiColumnTreeView

Inheritance

Implements

Inherited Members

Namespace: Syncfusion.Windows.Forms.Tools.MultiColumnTreeView

Assembly: Syncfusion.Tools.Windows.dll

Syntax

Constructors

MultiColumnTreeView()

Declaration

Properties

ActiveNode

Declaration

Property Value

AddSeparatorAtEnd

Declaration

Property Value

AllowDropStubWorks

Declaration

Property Value

AllowIncreaseSmallChange

Declaration

Property Value

Overrides

AllowKeyboardSearch

Declaration

Property Value

Remarks

AllowMouseBasedSelection

Declaration

Property Value

AutoAdjustMultiLineHeight

Declaration

Property Value

AutoControlsAdding

Declaration

Property Value

AutoGenerateColumns

Declaration

Property Value

AutoSizeMode

Declaration

Property Value

BackColor

Declaration

Property Value

BackgroundColor

Declaration

Property Value

Remarks

BaseStylePairs

Declaration

Property Value

BaseStyles

Declaration

Property Value

Remarks

BeforeTouchSize

Declaration

Property Value

Border3DStyle

Declaration

Property Value

BorderColor

Declaration

Property Value

BorderSides

Declaration

Property Value

BorderSingle

Declaration

Property Value

BorderStyle

Declaration

Property Value

CanApplyTheme

Declaration

Property Value

CancelEdit