title: ListBox in Grid Row with Auto height. Scrollbar is not working
body: <p>I have the following grid:</p>
  
  <pre><code>&lt;Grid&gt;
      &lt;Grid.RowDefinitions&gt;
          &lt;RowDefinition Height="Auto"/&gt;
          &lt;RowDefinition Height="Auto"/&gt;
          &lt;RowDefinition Height="*"/&gt;
          &lt;RowDefinition Height="Auto"/&gt;
      &lt;/Grid.RowDefinitions&gt;
      &lt;Border Height="50" Background="Gainsboro" Grid.Row="0"/&gt;
      &lt;Border Background="AliceBlue" Grid.Row="1"&gt;
          &lt;ListBox ScrollViewer.VerticalScrollBarVisibility="Auto" ItemsSource="asdasdfasdf3dfasdf"/&gt;
      &lt;/Border&gt;
      &lt;Border Height="60" Background="Aquamarine" Grid.Row="3"/&gt;
  &lt;/Grid&gt;
  </code></pre>
  
  <p>Why ListBox's scrollviewer is not enabled? Last border is pushed out of a window. If i set the Grid.Row 2 Height to * star - it works nicely. Is it possible to have listbox with scrollviewer in auto height grid row?</p>