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How to disable tooltips for some particular nodes?

 

The tooltip for some of the nodes which have HelpText can be disabled by handling ToolTipControl_BeforePopup event.Here in the treeViewAdv, for some of the nodes e.Cancel property is set to true by getting the node's position in ToolTipControl's BeforePopup event handler in which the tooltips for the respective nodes are disabled .The tooltips for the same nodes can be enabled by setting the e.Cancel=false in ToolTipControl's BeforePopup Event.

C#

private void ToolTipControl_BeforePopup(object sender, CancelEventArgs e)

{

Point pt=this.treeViewAdv1.PointToClient(new Point(MousePosition.X,MousePosition.Y));

TreeNodeAdv node=this.treeViewAdv1.GetNodeAtPoint(pt);

if(node!=null)

{

if(node.Text=="Node1" || node.Text=="Node3"||node.Text=="Node5"||node.Text=="Node7")

{

e.Cancel=true;

}

}

}

VB

Private Sub ToolTipControl_BeforePopup(ByVal sender As Object, ByVal e As CancelEventArgs)

Dim pt As Point=Me.treeViewAdv1.PointToClient(New Point(MousePosition.X,MousePosition.Y))

Dim node As TreeNodeAdv=Me.treeViewAdv1.GetNodeAtPoint(pt)

If Not node Is Nothing Then

If node.Text="Node1" OrElse node.Text="Node3" OrElse node.Text="Node5" OrElse node.Text="Node7" Then

e.Cancel=True

End If

End If

End Sub

Article ID: Published Date: Last Revised Date: Platform: Control:
1351 04/30/2011 07/10/2014 WinForms TreeViewAdv
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