title: Change WinForm to Win Control, Works Fine but Invisible in Visual Studio Designer
body: <p>I've converted a Windows Form into a Windows Control (by changing the code's parent from Form to Control, removing a few minor/irrelevant Form property assignments, and changing the project settings to "Class Library" instead of Windows Form Application).  The Control works great in my application, but when I open it up in Visual Studio Designer there is nothing there except the labels for the items it isn't showing me (panel1, button1, etc.).  </p>
  
  <p>How do I get designer working again?  It gives no errors.</p>