title: Why isn't ContextMenuService.Placement working at all?
body: <p>In fact most ContextMenuService attributes are not working. Placement, PlacementTarget and even IsEnabled are doing nothing for me. HasDropShadow works fine though...</p>
  
  <p>Here is snippet of a Button where Placement is not doing anything:</p>
  
  <pre><code>            &lt;Button Height="30" Width="81" Content="A button"&gt;
                  &lt;Button.ContextMenu&gt;
                      &lt;ContextMenu ContextMenuService.HasDropShadow="False"
                                   ContextMenuService.Placement="Bottom"&gt;
                          &lt;MenuItem Header="Omp"/&gt;
                          &lt;MenuItem Header="Bam"/&gt;
                      &lt;/ContextMenu&gt;
                  &lt;/Button.ContextMenu&gt;
              &lt;/Button&gt;
  </code></pre>
  
  <p>And a picture of it (in the centre, where I clicked, not at the bottom):</p>
  
  <p><img src="https://i.stack.imgur.com/S9Pr2.png" alt="fail"></p>
  
  <p>I first noticed this on a TreeViewEx, but since I tried it on a Button and a ListView I got the same results.</p>
  
  <p>The xaml is so simple it can't be the problem. What can it be?
  Edit: The xaml was the problem XP</p>
  
  <p>Thanks for reading &amp; I hope we get this solved :)</p>