title: XAML WrapPanel inside TreeView
body: <br>
  I have a TreeView displaying items through a Hierarchical Data Template. Now I want to display two properties of an object in the TreeView, as in: 
  <pre><code>Object1 Name                 Object1 Src
    Object2 Name               Object2 Src
      Object3 Name             Object3 Src
  </code></pre>
  <p>How can I format the output, so that the Src is always aligned on the right side of the TreeViewItem?</p>