title: AutoCompleteBox in Silverlight 4 bound to dictionary - show only values issue
body: <p>I have used AutoCompleteBox usercontrol. I have a dictionary of type <code>Dictionary&lt;int,string&gt;</code> which contains ids and names. I want to show only names in the AutoCompleteBox. I can do it with </p>
  
  <pre><code>autoCompleteBox1.ItemsSource = dict.Values;
  </code></pre>
  
  <p>My problem is whenever any name is selected I want to retrieve the id associated with it. But I don't want to display the ids to the user as those are for internal purpose. How can I do it?</p>