Single selection and bindings

• Subject: Single selection and bindings
• From: Jonathan Guy <email@hidden>
• Date: Fri, 30 Jun 2006 15:19:39 +0100
• Delivered-to: email@hidden
• Delivered-to: email@hidden

Hi all
This would seem an easy thing to do but can't figure it out. I want to bind the "Enabled" part of a button to the selection of a tree controller BUT I only want the button to be enable when there is a single item selected in the outline view (NOT a zero or multiple selection). 

Hope someone can help.
Thanks
Jonathan
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