WPF Routed Command with Bindings per-Tab

Question

I intended to disable and enable the Buttons outside the TabControl, just like those inside the TabItem when the current tab is changed. But the CommandBindings of the TabIt

Answer 1

MSFT gave me the correct answer in their WPF forum, here (http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/bb3d1eb1-96fa-4fbc-beda-799613acb9f7)