Treeview in UserControl Return Key not responding

[DeafBug]

I need a big help. If you open the attached file and run it. Click once on the treeview so it has focus. Now use the arrow keys and press enter key. Nothing happens.

Stop the program and open up the UserControl and change the User Control property DefaultCancel = False. Now run it and press Enter key. You will see that the debug.print statement executed in the Treeview_Keypress.

Well, it is a scaled down of the actual control we have in our program. There are other buttons on the control that has Default = True set. We have tried everything we can to get it to work. The only other option is to rewrite the whole thing and do away with the user control if we can't make use of the Enter key because of the user control property being True.

I thought if you people can help before we start talking about rewriting it. The real reason behind this is that majority of our clients are keyboard oriented, so they want to be able to select a single item (the last child, never a parent) in the treeview with the Enter key. Yes, it has to be the Enter key. It work one way but not the other way. How do I overcome that?

Thank you for your help.