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Binding multiple combo boxes to the same list

Posted By:      Posted Date: October 25, 2010    Points: 0   Category :WPF
 

If I bind multiple combo boxes to a list of combo box items, selecting an item in one box clears the list in the other. When I use a list that contains something other than combo box items the binding works as expected. Is this a bug or am I missing something?

Here is an example of the behavior using VS 2010 premium and .Net 4.0

<Window x:Class="TestApp.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="<


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