title: WPF wrappanel: manage horizontal and vertical behaviour
body: <p>is there any way to obtain this layout using a WPF Wrappanel? B and C in the pictures should be vertically aligned in horizontal mode and horizontally aligned in vertical mode. Letters orientation must be preserved.
  In pictures, from [Horizontal] to [Vertical]:</p>
  
  <p><a href="https://i.stack.imgur.com/FebZz.png" rel="nofollow noreferrer">Horizontal</a></p>
  
  <p><a href="https://i.stack.imgur.com/uvtg8.png" rel="nofollow noreferrer">Vertical</a></p>
  
  <p>I've tryed:</p>
  
  <pre><code>&lt;wrappanel&gt;
  &lt;A/&gt;
  &lt;wrappanel&gt;
  &lt;B/&gt;&lt;C/&gt;
  &lt;/wrappanel&gt;
  &lt;/wrappanel&gt;
  </code></pre>
  
  <p>but its behaviuor is unpredictable. Thank you in advance.</p>