title: WPF Binding Collection To ComboBox and Selecting an item
body: <p>I've been knocking my head against this for some time now. I'm not really sure why it isn't working. I'm still pretty new to this whole WPF business. </p>
  
  <p>Here's my XAML for the combobox</p>
  
  <pre><code>&lt;ComboBox 
      SelectedValuePath="Type.FullName"
      SelectedItem="{Binding Path=Type}"
      Name="cmoBox" /&gt;
  </code></pre>
  
  <p>Here's what populates the ComboBox (myAssembly is a class I created with a list of possible types)</p>
  
  <pre><code>cmoBox.ItemsSource = myAssembly.PossibleTypes;
  </code></pre>
  
  <p>I set the DataContext in a parent element of the ComboBox in the code behind like this:</p>
  
  <pre><code>groupBox.DataContext = listBox.SelectedItem;
  </code></pre>
  
  <p>I want the binding to select the correct "possible type" from the combo box.  It doesn't select anything. I have tried SelectedValue and SelectedItem. When I changed the DisplayMemberPath of the ComboBox to a different property it changed what was displayed so I know it's not completely broken. </p>
  
  <p>Any ideas???</p>