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C# WinForms: Disabling the Collapse on a double-click for TreeView

Posted on 2012-09-15
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Last Modified: 2012-09-15
I coded the double-click event to edit the node double-clicked on.  So I no longer want the default behavior which collapses the node tree for the Node double-clicked on.

How do I stop this?

Thanks.
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Question by:newbieweb
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Jacques Bourgeois (James Burger) earned 2000 total points
ID: 38401867
Create your own TreeView by inheriting from the standard one:
Public Class YourTreeView
	Inherits System.Windows.Forms.TreeView

	Protected Overrides Sub OnNodeMouseDoubleClick(e As TreeNodeMouseClickEventArgs)
		'Your alternate code
	End Sub

End Class

Open in new window

Inheritance lets you inherit all the functionnality of the standard TreeView. But since you overrides the method that triggers NodeMouseDoubleClick, you are the one in control on that event.

Compile your code, and your custom TreeView should appear in an extra tab at the top of the ToolBox. Use it anywhere you want in place of the standard TreeView. No need to code the thing in the application, it is now part of your new "enhanced" TreeView.
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Author Closing Comment

by:newbieweb
ID: 38401938
Thanks.  Good idea...
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