Class GridCellDropDownCellRenderer<T>

Renders drop-down list control in a grid cell.

Inheritance
System.Object
NonFinalizeDisposable
Disposable
CellRendererBase<GridRenderStyleInfo>
GridCellRendererBase
GridVirtualizingCellRendererBase<T>
GridVirtualizingCellRenderer<T>
GridCellDropDownCellRenderer<T>
GridCellComboBoxCellRenderer
GridCellGridListControlDropDownCellRenderer
GridDataControlDropDownCellRenderer
GridDataDropDownFilterBar
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Syncfusion.Windows.Controls.Grid
Assembly: Syncfusion.Grid.Wpf.dll
Syntax
public class GridCellDropDownCellRenderer<T> : GridVirtualizingCellRenderer<T>, IGridCellRenderer, ICellRenderer, IHitTestSelectCells, IStyleChanged, IDisposable, IAllowKeepAliveOnlyCurrentCell where T : GridCellDropDownControlBase, new()
Type Parameters
Name Description
T

The GridCellDropDownControlBase.

Constructors

GridCellDropDownCellRenderer()

Initializes the object.

Declaration
public GridCellDropDownCellRenderer()

Properties

AlreadyTextChanged

Gets or sets a value indicating whether the text is already changed.

Declaration
protected bool AlreadyTextChanged { get; set; }
Property Value
Type Description
System.Boolean

true if [already text changed]; otherwise, false.

CanProcessKey

Use this variable to check if the key can be processed

Declaration
protected bool CanProcessKey { get; set; }
Property Value
Type Description
System.Boolean

GridListModel

Gets the GridListModel, i.e. the model of the drop-down control.

Declaration
public IGridListModel GridListModel { get; }
Property Value
Type Description
IGridListModel

SuspendEvents

Declaration
protected bool SuspendEvents { get; set; }
Property Value
Type Description
System.Boolean

Methods

ArrangeUIElement(ArrangeCellArgs, T, GridRenderStyleInfo)

Declaration
protected override void ArrangeUIElement(ArrangeCellArgs aca, T uiElement, GridRenderStyleInfo style)
Parameters
Type Name Description
ArrangeCellArgs aca
T uiElement
GridRenderStyleInfo style
Overrides
Syncfusion.Windows.Controls.Grid.GridVirtualizingCellRendererBase<T>.ArrangeUIElement(Syncfusion.Windows.Controls.Cells.ArrangeCellArgs, T, Syncfusion.Windows.Controls.Grid.GridRenderStyleInfo)

ClearSelectedIndex()

Declaration
protected virtual void ClearSelectedIndex()

FindItem(String, Boolean, Int32, Boolean, out String)

Finds text in the list box.

Declaration
public virtual int FindItem(string prefix, bool selectItem, int start, bool ignoreCase, out string filteredText)
Parameters
Type Name Description
System.String prefix

The text (or prefix) to find.
System.Boolean selectItem

True if you want to select the text in the list box.
System.Int32 start

The first index to start searching.
System.Boolean ignoreCase

True if case can be ignored; False if case sensitive.
System.String filteredText

The filtered text.
Returns
Type Description
System.Int32

The index of the entry that starts with the text; -1 if no entry could be found.

GetControlTextFromEditorCore(T)

Declaration
protected override string GetControlTextFromEditorCore(T uiElement)
Parameters
Type Name Description
T uiElement
Returns
Type Description
System.String
Overrides
Syncfusion.Windows.Controls.Grid.GridVirtualizingCellRenderer<T>.GetControlTextFromEditorCore(T)

GetDropDownVisualStyle(T, GridStyleInfo)

Declaration
public T GetDropDownVisualStyle(T dropdown, GridStyleInfo style)
Parameters
Type Name Description
T dropdown
GridStyleInfo style
Returns
Type Description
T

GridControl_PreviewKeyDown(Object, KeyEventArgs)

Declaration
protected void GridControl_PreviewKeyDown(object sender, KeyEventArgs e)
Parameters
Type Name Description
System.Object sender
System.Windows.Input.KeyEventArgs e

OnActivated()

Declaration
protected override void OnActivated()
Overrides

OnConfirmChangesFailed()

Declaration
protected override void OnConfirmChangesFailed()
Overrides

OnDeactivated()

Declaration
protected override void OnDeactivated()
Overrides

OnEditingComplete()

Declaration
protected override void OnEditingComplete()
Overrides

OnEnteredEditMode()

Declaration
protected override void OnEnteredEditMode()
Overrides

OnGridPreviewTextInput(TextCompositionEventArgs)

This method only for Exclusive DropDown. If we type char means take the item from the List box

Declaration
protected override void OnGridPreviewTextInput(TextCompositionEventArgs e)
Parameters
Type Name Description
System.Windows.Input.TextCompositionEventArgs e
Overrides

OnInitialize()

Declaration
protected override void OnInitialize()
Overrides

OnInitializeContent(T, GridRenderStyleInfo)

Initializes the content of the drop-down list cell using the information from the cell style (value, text, behavior etc.).

Declaration
public override void OnInitializeContent(T dropDownControl, GridRenderStyleInfo style)
Parameters
Type Name Description
T dropDownControl

The drop-down list control.
GridRenderStyleInfo style

The cell style info.
Overrides
Syncfusion.Windows.Controls.Grid.GridVirtualizingCellRenderer<T>.OnInitializeContent(T, Syncfusion.Windows.Controls.Grid.GridRenderStyleInfo)

OnIsDropDownOpenChanged(Object, EventArgs)

Declaration
protected virtual void OnIsDropDownOpenChanged(object sender, EventArgs e)
Parameters
Type Name Description
System.Object sender
System.EventArgs e

OnRender(DrawingContext, RenderCellArgs, GridRenderStyleInfo)

Declaration
protected override void OnRender(DrawingContext dc, RenderCellArgs rca, GridRenderStyleInfo style)
Parameters
Type Name Description
System.Windows.Media.DrawingContext dc
RenderCellArgs rca
GridRenderStyleInfo style
Overrides
Syncfusion.Windows.Controls.Cells.CellRendererBase<Syncfusion.Windows.Controls.Grid.GridRenderStyleInfo>.OnRender(System.Windows.Media.DrawingContext, Syncfusion.Windows.Controls.Cells.RenderCellArgs, Syncfusion.Windows.Controls.Grid.GridRenderStyleInfo)

OnSetFocus()

Declaration
protected override void OnSetFocus()
Overrides

OnTextBoxPartKeyDown(Object, KeyEventArgs)

Declaration
protected virtual void OnTextBoxPartKeyDown(object sender, KeyEventArgs e)
Parameters
Type Name Description
System.Object sender
System.Windows.Input.KeyEventArgs e

OnTextBoxPartPreviewKeyDown(Object, KeyEventArgs)

Declaration
protected virtual void OnTextBoxPartPreviewKeyDown(object sender, KeyEventArgs e)
Parameters
Type Name Description
System.Object sender
System.Windows.Input.KeyEventArgs e

OnTextBoxPartTextChanged(Object, TextChangedEventArgs)

Declaration
protected virtual void OnTextBoxPartTextChanged(object sender, TextChangedEventArgs e)
Parameters
Type Name Description
System.Object sender
System.Windows.Controls.TextChangedEventArgs e

OnUnwireUIElement(T)

Declaration
protected override void OnUnwireUIElement(T uiElement)
Parameters
Type Name Description
T uiElement
Overrides
Syncfusion.Windows.Controls.Grid.GridVirtualizingCellRenderer<T>.OnUnwireUIElement(T)

OnWireUIElement(T)

Declaration
protected override void OnWireUIElement(T uiElement)
Parameters
Type Name Description
T uiElement
Overrides
Syncfusion.Windows.Controls.Grid.GridVirtualizingCellRenderer<T>.OnWireUIElement(T)

RaiseGridCellClick(Int32, Int32, MouseControllerEventArgs)

Raises GridCellClick event.

Declaration
public override void RaiseGridCellClick(int rowIndex, int colIndex, MouseControllerEventArgs e)
Parameters
Type Name Description
System.Int32 rowIndex

The cell row index.
System.Int32 colIndex

The cell column index.
MouseControllerEventArgs e

A MouseControllerEventArgs object.
Overrides

RaiseSelectedItemChangedEvent(RowColumnIndex, Object)

Declaration
protected virtual void RaiseSelectedItemChangedEvent(RowColumnIndex cellRowColumnIndex, object item)
Parameters
Type Name Description
RowColumnIndex cellRowColumnIndex
System.Object item

SetSelectedIndex(Int32)

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

ShouldGridTryToHandlePreviewKeyDown(KeyEventArgs)

Declaration
protected override bool ShouldGridTryToHandlePreviewKeyDown(KeyEventArgs e)
Parameters
Type Name Description
System.Windows.Input.KeyEventArgs e
Returns
Type Description
System.Boolean
Overrides

UnwireTemplateParts(T)

Declaration
protected virtual void UnwireTemplateParts(T uiElement)
Parameters
Type Name Description
T uiElement

WireTemplateParts(T)

Declaration
protected virtual void WireTemplateParts(T uiElement)
Parameters
Type Name Description
T uiElement

Implements

System.IDisposable

Extension Methods