Class GridTreeExpandCellRenderer

CellRenderer that displays indented tree-like node layout.

Inheritance
System.Object
NonFinalizeDisposable
Disposable
CellRendererBase<GridRenderStyleInfo>
GridCellRendererBase
GridVirtualizingCellRendererBase<System.Windows.Controls.TextBox>
GridVirtualizingCellRenderer<System.Windows.Controls.TextBox>
GridCellTextBoxRenderer
GridTreeExpandCellRenderer
GridTreeExpanderCellRendererExt
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Syncfusion.Windows.Controls.Grid
Assembly: Syncfusion.Grid.Wpf.dll
Syntax
public class GridTreeExpandCellRenderer : GridCellTextBoxRenderer, IGridCellRenderer, ICellRenderer, IHitTestSelectCells, IStyleChanged, IDisposable, IAllowKeepAliveOnlyCurrentCell

Constructors

GridTreeExpandCellRenderer()

Deault constructor.

Declaration
public GridTreeExpandCellRenderer()

Properties

ExpandGlyphType

Gets or sets the type of the glyph shown in the expand cell.

Declaration
public GridTreeExpandGlyph ExpandGlyphType { get; set; }
Property Value
Type
GridTreeExpandGlyph
Remarks

The default value is a triangle. You can also set a +- glyph, or a +-glyph with tree lines, or a custom drawn glyph. The property NodeColumnWidth reserves the required width of your glyph. The default value of NodeColumnWidth is 10 which is the setting used for the triangle glyph. For the +- glyph, the value of NodeColumnWidth is set to 14. If you want to explicitly provide a particular NodeColumnWidth, then you need to explicitly reset its value after you set ExpandGlyphType as setting ExpandGlypType also possibly resets NodeColumnWidth.

ExpandWidgetBrush

Gets or sets the Brush used for drawing of the primary expand glyph drawing.

Declaration
public Brush ExpandWidgetBrush { get; set; }
Property Value
Type
System.Windows.Media.Brush

ExpandWidgetPen

Gets or sets the Pen used to draw the borders of the expand glyph.

Declaration
public Pen ExpandWidgetPen { get; set; }
Property Value
Type
System.Windows.Media.Pen

HotExpandWidgetBrush

Gets or sets the Brush used for drawing the epand glyph when it is under the mouse.

Declaration
public Brush HotExpandWidgetBrush { get; set; }
Property Value
Type
System.Windows.Media.Brush

NodeColumnWidth

Gets or sets the width of the expand glyph area.

Declaration
public double NodeColumnWidth { get; set; }
Property Value
Type
System.Double
Remarks

When the expand glyph is the triangle, this value is set to 10. When the expand glyph is a +-, this value is set to 14. If you want to explicitly provide a particular NodeColumnWidth, then you need to explicitly reset its value after you set ExpandGlyphType as setting ExpandGlypType also possibly resets NodeColumnWidth.

VisualStyle

Gets or sets the visual style.

Declaration
public IGridTreeVisualStyle VisualStyle { get; set; }
Property Value
Type Description
IGridTreeVisualStyle

The visual style.

Methods

ClipNodeImage(Rect, Double, Double, GridRenderStyleInfo)

This function used to Find the image rectangle Hight, width and positions

Declaration
protected virtual Rect ClipNodeImage(Rect cellRect, double imageWidth, double imageHeight, GridRenderStyleInfo style)
Parameters
Type Name Description
System.Windows.Rect cellRect
System.Double imageWidth
System.Double imageHeight
GridRenderStyleInfo style
Returns
Type
System.Windows.Rect

Dispose(Boolean)

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

OnGlyphDrawing(GridTreeGlyphDrawingEventArgs)

Raises the GlyphDrawing event.

Declaration
protected virtual void OnGlyphDrawing(GridTreeGlyphDrawingEventArgs e)
Parameters
Type Name Description
GridTreeGlyphDrawingEventArgs e

The event argument.

OnRender(DrawingContext, RenderCellArgs, GridRenderStyleInfo)

Called when [render].

Declaration
protected override void OnRender(DrawingContext dc, RenderCellArgs rca, GridRenderStyleInfo style)
Parameters
Type Name Description
System.Windows.Media.DrawingContext dc

The dc.
RenderCellArgs rca

The rca.
GridRenderStyleInfo style

The style.
Overrides

OnRenderExpander(GridTreeControlImpl, DrawingContext, RenderCellArgs, GridRenderStyleInfo)

Called when [render expander].

Declaration
protected virtual void OnRenderExpander(GridTreeControlImpl tree, DrawingContext dc, RenderCellArgs rca, GridRenderStyleInfo style)
Parameters
Type Name Description
GridTreeControlImpl tree

The tree.
System.Windows.Media.DrawingContext dc

The dc.
RenderCellArgs rca

The rca.
GridRenderStyleInfo style

The style.

OnRenderImage(GridTreeControlImpl, DrawingContext, RenderCellArgs, GridRenderStyleInfo)

Called when [render image].

Declaration
protected virtual double OnRenderImage(GridTreeControlImpl tree, DrawingContext dc, RenderCellArgs rca, GridRenderStyleInfo style)
Parameters
Type Name Description
GridTreeControlImpl tree

The tree.
System.Windows.Media.DrawingContext dc

The dc.
RenderCellArgs rca

The rca.
GridRenderStyleInfo style

The style.
Returns
Type
System.Double

OnRenderText(DrawingContext, RenderCellArgs, GridRenderStyleInfo)

Called when [render text].

Declaration
public virtual void OnRenderText(DrawingContext dc, RenderCellArgs rca, GridRenderStyleInfo style)
Parameters
Type Name Description
System.Windows.Media.DrawingContext dc

The dc.
RenderCellArgs rca

The rca.
GridRenderStyleInfo style

The style.

Events

GlyphDrawing

Event used to provide access to the glyph in the expand cell.

Declaration
public event GridTreeGlyphDrawingHandler GlyphDrawing
Event Type
Type
GridTreeGlyphDrawingHandler
Remarks

Setting ExpandGlyphType = Custom will cause this event to be raised when the glyph is drawn.

Implements

System.IDisposable