Class TreeGridVirtualizingCellRenderer<D, E>

TreeGridVirtualizingCellRenderer is an abstract base class for cell renderers that need live UIElement visuals displayed in a cell. You can derive from this class and provide the type of the UIElement you want to show inside cells as type parameter. The class provides strong typed virtual methods for initializing content of the cell and arranging the cell visuals. See TreeGridVirtualizingCellRendererBase{T} for more details.

The idea behind this class is to provide a place where we can add general code that should be shared for all cell renderers in the tree derived from TreeGridVirtualizingCellRendererBase. While this class does at the moment not add meaningful functionality to TreeGridVirtualizingCellRendererBase we created this extra layer of inheritance to make it easy to share code for the TreeGridVirtualizingCellRendererBase base class between grid and common assemblies and keep grid control specific code out of the base class. It is currently not possible with C# to the base class as template type parameter.

Inheritance
System.Object
TreeGridCellRendererBase
TreeGridVirtualizingCellRendererBase<D, E>
TreeGridVirtualizingCellRenderer<D, E>
TreeGridCellCheckBoxRenderer
TreeGridCellComboBoxRenderer
TreeGridCellCurrencyRenderer
TreeGridCellDateTimeRenderer
TreeGridCellHyperlinkRenderer
TreeGridCellMaskRenderer
TreeGridCellNumericRenderer
TreeGridCellPercentageRenderer
TreeGridCellTemplateRenderer
TreeGridCellTextBlockRenderer
TreeGridCellTextBoxRenderer
TreeGridHeaderCellRenderer
TreeGridRowHeaderCellRenderer
TreeGridStackedHeaderCellRenderer
Implements
System.IDisposable
Inherited Members
Namespace: Syncfusion.UI.Xaml.TreeGrid.Cells
Assembly: Syncfusion.SfGrid.WPF.dll
Syntax
public abstract class TreeGridVirtualizingCellRenderer<D, E> : TreeGridVirtualizingCellRendererBase<D, E>, ITreeGridCellRenderer, IDisposable where D : FrameworkElement, new()
    where E : FrameworkElement, new()
Type Parameters
Name Description
D

D is a DisplayElement which is used to display the value on initilal loading of treegrid
E

E is a EditElement which is used to show the displayed data in the edit mode

Constructors

TreeGridVirtualizingCellRenderer()

Initializes a new instance of TreeGridVirtualizingCellRenderer<D, E> class.

Declaration
protected TreeGridVirtualizingCellRenderer()

Properties

EditorType

Gets or sets the Editor type.

Declaration
public Type EditorType { get; set; }
Property Value
Type Description
System.Type

Return the editor type.

Methods

CurrentRendererValueChanged()

Invoked when the current renderer changed.

Declaration
protected virtual void CurrentRendererValueChanged()

OnInitializeDisplayElement(TreeDataColumnBase, D, Object)

Initialize the binding for display element of corresponding column.

Declaration
public override void OnInitializeDisplayElement(TreeDataColumnBase dataColumn, D uiElement, object dataContext)
Parameters
Type Name Description
TreeDataColumnBase dataColumn

Specifies the dataColumn which contain TreeGridColumn, RowColumnIndex
D uiElement

Specifies the display control to initialize binding
System.Object dataContext

Specifies the data context of the particular row
Overrides
Syncfusion.UI.Xaml.TreeGrid.Cells.TreeGridVirtualizingCellRendererBase<D, E>.OnInitializeDisplayElement(Syncfusion.UI.Xaml.TreeGrid.TreeDataColumnBase, D, System.Object)

OnInitializeEditElement(TreeDataColumnBase, E, Object)

Initialize the binding for editor control of corresponding column.

Declaration
public override void OnInitializeEditElement(TreeDataColumnBase dataColumn, E uiElement, object dataContext)
Parameters
Type Name Description
TreeDataColumnBase dataColumn

Specifies the dataColumn which contain TreeGridColumn, RowColumnIndex
E uiElement

Specifies the data context of the particular row
System.Object dataContext

Specifies the data context of the particular row
Overrides
Syncfusion.UI.Xaml.TreeGrid.Cells.TreeGridVirtualizingCellRendererBase<D, E>.OnInitializeEditElement(Syncfusion.UI.Xaml.TreeGrid.TreeDataColumnBase, E, System.Object)

OnInitializeTemplateElement(TreeDataColumnBase, ContentControl, Object)

Initialize the binding for TreeGridCell by Columns's CellTemplate and CellTemplateSelector.

Declaration
public override void OnInitializeTemplateElement(TreeDataColumnBase dataColumn, ContentControl uiElement, object dataContext)
Parameters
Type Name Description
TreeDataColumnBase dataColumn

Specifies the dataColumn which contain TreeGridColumn, RowColumnIndex
System.Windows.Controls.ContentControl uiElement

Specifies the display control to initialize binding
System.Object dataContext

Specifies the data context of the particular row
Overrides
Syncfusion.UI.Xaml.TreeGrid.Cells.TreeGridVirtualizingCellRendererBase<D, E>.OnInitializeTemplateElement(Syncfusion.UI.Xaml.TreeGrid.TreeDataColumnBase, System.Windows.Controls.ContentControl, System.Object)

OnUpdateDisplayBinding(TreeDataColumnBase, D, Object)

Updates the binding for display element of corresponding column.

Declaration
public override void OnUpdateDisplayBinding(TreeDataColumnBase dataColumn, D uiElement, object dataContext)
Parameters
Type Name Description
TreeDataColumnBase dataColumn

Specifies the TreeDataColumnBase.
D uiElement

Specifies the data context of the particular row.
System.Object dataContext

Specifies the data context of the particular row.
Overrides
Syncfusion.UI.Xaml.TreeGrid.Cells.TreeGridVirtualizingCellRendererBase<D, E>.OnUpdateDisplayBinding(Syncfusion.UI.Xaml.TreeGrid.TreeDataColumnBase, D, System.Object)

OnUpdateEditBinding(TreeDataColumnBase, E, Object)

Updates the binding for editor control of corresponding column.

Declaration
public override void OnUpdateEditBinding(TreeDataColumnBase dataColumn, E element, object dataContext)
Parameters
Type Name Description
TreeDataColumnBase dataColumn

Specifies the TreeDataColumnBase.
E element

Specifies the data context of the particular row.
System.Object dataContext

Specifies the data context of the particular row.
Overrides
Syncfusion.UI.Xaml.TreeGrid.Cells.TreeGridVirtualizingCellRendererBase<D, E>.OnUpdateEditBinding(Syncfusion.UI.Xaml.TreeGrid.TreeDataColumnBase, E, System.Object)

OnUpdateTemplateBinding(TreeDataColumnBase, ContentControl, Object)

Updates the binding for the TreeGridCell by Column's CellTemplate and CellTemplateSelector.

Declaration
public override void OnUpdateTemplateBinding(TreeDataColumnBase dataColumn, ContentControl uiElement, object dataContext)
Parameters
Type Name Description
TreeDataColumnBase dataColumn

Specifies the dataColumn which contain TreeGridColumn, RowColumnIndex
System.Windows.Controls.ContentControl uiElement

Specifies the display control to initialize binding
System.Object dataContext

Specifies the data context of the particular row
Overrides
Syncfusion.UI.Xaml.TreeGrid.Cells.TreeGridVirtualizingCellRendererBase<D, E>.OnUpdateTemplateBinding(Syncfusion.UI.Xaml.TreeGrid.TreeDataColumnBase, System.Windows.Controls.ContentControl, System.Object)

ShouldGridTryToHandleKeyDown(KeyEventArgs)

Handles the key interaction with editor of corresponding column.

Declaration
protected override bool ShouldGridTryToHandleKeyDown(KeyEventArgs e)
Parameters
Type Name Description
System.Windows.Input.KeyEventArgs e

A System.Windows.Input.KeyEventArgs that contains event data.
Returns
Type Description
System.Boolean

Returns True if the parent grid should be allowed to handle keys; otherwise False.
Overrides

TextAlignmentToHorizontalAlignment(TextAlignment)

Method to return the horizontal alignment for the text.

Declaration
protected HorizontalAlignment TextAlignmentToHorizontalAlignment(TextAlignment textAlignment)
Parameters
Type Name Description
System.Windows.TextAlignment textAlignment

The text alignment.
Returns
Type Description
System.Windows.HorizontalAlignment

HorizontalAlignment of text

Implements

System.IDisposable