Treeview doubleclick

[Heike]

I have a treeview in my form. This treeview has a AfterSelect and a DblClick procedure. My problem is, that on a doubleclick the selected (doubleclicked) node expands and collapses. How can I stop my treeview doing that?

 

Thanks.

[divil]

With the BeforeExpand event. You can check e.Action, and determine what event (keyboard, mouse etc) caused the node to expand.

[Heike]

Thanks but unfortunately I'm not really sure how to do it. This is how I tried it:

 

Private Sub treDatabase_BeforeExpand(...) Handles treDatabase.BeforeExpand
   If e.Action = TreeViewAction.Expand Then
       If CType(e.Node, DatabaseTreeNode).Database.lngTyp = enmNodeTyp.enmTable Then
           e.Cancel = True
       End If
   End If
End Sub

But then no expand is possible.

 

Any ideas?

[divil]

It may not be possible. I assumed there would be a member of the TreeViewAction class specifically for the user having double-clicked a node, but maybe not. If the DblClick event fired just before the BeforeExpand method you might be able to hack something.

[keitsi]

TreeView doubleclick-expand hack

 

Here.

http://www.xtremedotnettalk.com/showthread.php?p=424382#post424382