title: Binding only part of the margin property of WPF control
body: <p>I have this:</p>
  
  <pre><code>&lt;TabControl Margin="0,24,0,0"&gt;...&lt;/TabControl&gt;
  </code></pre>
  
  <p>I want to bind only the <code>"Top"</code> part of the TabControl, which intuitively I would do it this way:</p>
  
  <pre><code>&lt;TabControl Margin="0,{Binding ElementName=TheMenu, Path=Height},0,0"&gt;
   ...
  &lt;/TabControl&gt;
  </code></pre>
  
  <p>How do I do it ?</p>