Class VirtualListView

The VirtualListView class is derives from DataListView to bind the AutoCompletePopup.

Inheritance
System.Object
DataListView
VirtualListView
Inherited Members
Namespace: Syncfusion.Windows.Forms.Tools
Assembly: Syncfusion.Tools.Windows.dll
Syntax
public class VirtualListView : DataListView

Constructors

VirtualListView()

Declaration
public VirtualListView()

Properties

HeaderFont

Gets or sets the Header font of the AutoCompletePopup.

Declaration
public Font HeaderFont { get; set; }
Property Value
Type
System.Drawing.Font

HeaderForeColor

Gets or sets the HeaderForeColor of the AutoCompletePopup.

Declaration
public Color HeaderForeColor { get; set; }
Property Value
Type
System.Drawing.Color

IsHorizontalScrollBarVisible

Gets the value whether horizontal scrollbar is visible.

Declaration
protected bool IsHorizontalScrollBarVisible { get; }
Property Value
Type
System.Boolean

IsVerticalScrollBarVisible

Gets the value whether vertical scrollbar is visible.

Declaration
protected bool IsVerticalScrollBarVisible { get; }
Property Value
Type
System.Boolean

ItemsCount

Gets or sets the sets the number of items to be displayed.

Declaration
public int ItemsCount { get; set; }
Property Value
Type
System.Int32

SelectedItemsCount

Gets the selected items count of the AutoCompletePopup.

Declaration
public int SelectedItemsCount { get; }
Property Value
Type
System.Int32

Methods

AdjustHeight(Int32)

Sets the control Height based on the item count subject to a maximum height.

Declaration
public override void AdjustHeight(int maxHeight)
Parameters
Type Name Description
System.Int32 maxHeight

The maximum height.
Overrides

Dispose(Boolean)

Declaration
protected override void Dispose(bool disposing)
Parameters
Type Name Description
System.Boolean disposing
Overrides

GetAdjustedMaxHeight(Int32)

Gets the height of the adjusted max.

Declaration
protected override int GetAdjustedMaxHeight(int actualMaxHeight)
Parameters
Type Name Description
System.Int32 actualMaxHeight

Actual height of the max.
Returns
Type
System.Int32
Overrides

GetHotIndex()

Declaration
public int GetHotIndex()
Returns
Type
System.Int32

GetSelectedIndex()

Declaration
public virtual int GetSelectedIndex()
Returns
Type
System.Int32

GetSelectedItemText()

Declaration
public virtual string GetSelectedItemText()
Returns
Type
System.String

IsItemSelected(Int32)

Declaration
public bool IsItemSelected(int index)
Parameters
Type Name Description
System.Int32 index
Returns
Type
System.Boolean

OnDataSourceChanged(Object, Object)

Declaration
protected override void OnDataSourceChanged(object oldDataSource, object newDataSource)
Parameters
Type Name Description
System.Object oldDataSource
System.Object newDataSource
Overrides

OnDrawColumnHeader(DrawListViewColumnHeaderEventArgs)

Raises the System.Windows.Forms.ListView.DrawColumnHeader event.

Declaration
protected override void OnDrawColumnHeader(DrawListViewColumnHeaderEventArgs e)
Parameters
Type Name Description
System.Windows.Forms.DrawListViewColumnHeaderEventArgs e

A System.Windows.Forms.DrawListViewColumnHeaderEventArgs that contains the event data.

OnDrawItem(DrawListViewItemEventArgs)

Draw item's background

Declaration
protected override void OnDrawItem(DrawListViewItemEventArgs e)
Parameters
Type Name Description
System.Windows.Forms.DrawListViewItemEventArgs e

A System.Windows.Forms.DrawListViewItemEventArgs that contains the event data.

OnDrawSubItem(DrawListViewSubItemEventArgs)

Draw image and subitems' text

Declaration
protected override void OnDrawSubItem(DrawListViewSubItemEventArgs e)
Parameters
Type Name Description
System.Windows.Forms.DrawListViewSubItemEventArgs e

A System.Windows.Forms.DrawListViewSubItemEventArgs that contains the event data.

OnMouseMove(MouseEventArgs)

Raises the System.Windows.Forms.Control.MouseMove event.

Declaration
protected override void OnMouseMove(MouseEventArgs e)
Parameters
Type Name Description
System.Windows.Forms.MouseEventArgs e

A System.Windows.Forms.MouseEventArgs that contains the event data.

OnMouseUp(MouseEventArgs)

Raises the System.Windows.Forms.Control.MouseUp event.

Declaration
protected override void OnMouseUp(MouseEventArgs e)
Parameters
Type Name Description
System.Windows.Forms.MouseEventArgs e

A System.Windows.Forms.MouseEventArgs that contains the event data.

OnRetrieveVirtualItem(RetrieveVirtualItemEventArgs)

Raises the System.Windows.Forms.ListView.RetrieveVirtualItem event.

Declaration
protected override void OnRetrieveVirtualItem(RetrieveVirtualItemEventArgs e)
Parameters
Type Name Description
System.Windows.Forms.RetrieveVirtualItemEventArgs e

A System.Windows.Forms.RetrieveVirtualItemEventArgs that contains the event data.

PopulateList()

Populates the ListView based on the columns in the DataSource.

Declaration
public override void PopulateList()
Overrides

SelectItem(Int32, Boolean)

Set the state of the passed Listview item's index.

Declaration
public void SelectItem(int index, bool selected)
Parameters
Type Name Description
System.Int32 index

Listview item's index.
System.Boolean selected

Select the passed item?

SetSelectedIndex(Int32)

Declaration
public virtual void SetSelectedIndex(int index)
Parameters
Type Name Description
System.Int32 index

WndProc(ref Message)

Overrides System.Windows.Forms.Control.WndProc(System.Windows.Forms.Message@).

Declaration
protected override void WndProc(ref Message m)
Parameters
Type Name Description
System.Windows.Forms.Message m

The Windows System.Windows.Forms.Message to process.

Events

QueryItemText

Declaration
public event QueryItemTextHandler QueryItemText
Event Type
Type
QueryItemTextHandler