title: DragDrop registration did not succeed
body: <blockquote>
    <p>System.InvalidOperationException: DragDrop registration did not
    succeed. ---> System.Threading.ThreadStateException:</p>
  </blockquote>
  
  <p>What does this exception mean?  I get it at this line trying to add a panel to a panel at runtime...</p>
  
  <pre><code>splitReport.Panel1.Controls.Add(ChartPanel);
  </code></pre>
  
  <p>Working in VS2008 C#</p>