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How to draw only focus rectangle when selecting multiple nodes without displaying highlighting colors

 

Displaying only focus rectangle when selecting multiple nodes without displaying highlighting colors can be acheived by setting the SelectedNodeBackground property's value to Color.Transparent and drawing the focus rectangle in SelectedNodeBackground event.

C#

this.treeViewAdv1.SelectedNodeBackground = new Syncfusion.Drawing.BrushInfo(Color.Transparent);

void treeViewAdv1_NodeBackgroundPaint(object sender, TreeNodeAdvPaintBackgroundEventArgs e)

{

if(this.treeViewAdv1.SelectedNodes.Count!=0)

{

foreach(TreeNodeAdv treenode in treeViewAdv1.SelectedNodes)

{

using (Pen focusPen = new Pen(Color.Black))

{

focusPen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot;

Rectangle focusBounds = treenode.DragCueBounds;

focusBounds.Size = new Size(focusBounds.Width - 1, focusBounds.Height-1);

e.Graphics.DrawRectangle(focusPen, focusBounds);

}

}

}

}

VB

Me.treeViewAdv1.SelectedNodeBackground = New Syncfusion.Drawing.BrushInfo(Color.Transparent)

Private Sub treeViewAdv1_NodeBackgroundPaint(ByVal sender As Object, ByVal e As TreeNodeAdvPaintBackgroundEventArgs)

If Me.treeViewAdv1.SelectedNodes.Count<>0 Then

For Each treenode As TreeNodeAdv In treeViewAdv1.SelectedNodes

Using focusPen As Pen = New Pen(Color.Black)

focusPen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot

Dim focusBounds As Rectangle = treenode.DragCueBounds

focusBounds.Size = New Size(focusBounds.Width - 1, focusBounds.Height-1)

e.Graphics.DrawRectangle(focusPen, focusBounds)

End Using

Next treenode

End If

End Sub

Sample :

http://help.syncfusion.com/support/uploads/tools.windows/kb/kb_treeviewadvfocusrect/Tools_WF_KB_TreeViewAdvFocusRect.zip

Article ID: Published Date: Last Revised Date: Platform: Control:
1834 04/30/2011 07/10/2014 WinForms TreeViewAdv
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