title: Display a ListBox with a List of enums
body: <p>I'm trying to display a <code>ListBox</code> inside of a <code>GridViewColumn</code> that needs to bind to a List of enums (<code>List&lt;ResourceType&gt; Cost</code>). The <code>GridViewColumn</code>'s <code>ListView</code> is already bound to a collection of objects and I'm not really sure the best way to go about displaying the <code>ListBox</code>. Any suggestions?</p>