title: WPF: Cannot see my custom control in the toolbox
body: <p>I have created 2 WPF control which reside in the same folder and i want to add one control to the other.</p>
  
  <p>The controls are added in a Win Forms project. </p>
  
  <p>the thing is that in a custom Win Forms control I can see my two WPF controls in the toolbox but in the WPF designer I cannot see any WPF controls. Any ideas why?</p>
  
  <p>And how can I add my control is XAML without dragging from the toolbox</p>
  
  <p>I tried with </p>
  
  <pre><code>&lt;UserControl x:
  xmlns:my2="my.name.space"
  Height="300" Width="300"&gt;
  &lt;Grid&gt;
      &lt;my2:MyControlName&gt;
  
      &lt;/my2:MyControlName&gt;
  &lt;/Grid&gt;
  </code></pre>
  
  <p></p>
  
  <p>But that doesn't work with the type "my2:MyControlName" doesn not exist</p>