Hide the dotted selectionSetting the TreeViewAdv's KeepDottedSelection property to false hides the dotted rectangle around the selected node when the TreeViewAdv loses focus. C# this.treeViewAdv1.KeepDottedSelection = true; VB Me.treeViewAdv1.KeepDottedSelection = True If you do not wish to have the dotted rectangle when the node is selected and TreeViewAdv has focus, then use the following workaround: 1. Set the TreeViewAdv's OwnerDrawNodes property to true. C# this.treeViewAdv1.OwnerDrawNodes = true; VB Me.treeViewAdv1.OwnerDrawNodes = True 2. Handle the TreeViewAdv's BeforeNodePaint event as shown below: C# private void treeViewAdv1_BeforeNodePaint(object sender, Syncfusion.Windows.Forms.Tools.TreeNodeAdvPaintEventArgs e)
{
e.Active = false;
}
VB Private Sub treeViewAdv1_BeforeNodePaint(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Tools.TreeNodeAdvPaintEventArgs) e.Active = False End Sub
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