title: .NET inherited (WinForms) Form - VS designer issue
body: <p>I have several forms in a C# application. I use Visual Studio 2010 Beta, but .NET 3.5 and C# 3.</p>
  
  <p>I have a base form, called FilteredQueryViewForm in the Shd namespace and I want some other forms to inherit it (because they will basically do the same stuff, but with some additions).</p>
  
  <p>I changed things from private to protected in the FilteredQueryViewForm class, so they're accessible from the derived forms. After this I've created a derived form and set the base class to FilteredQueryViewForm.</p>
  
  <p>The designer of the derived class complained about Shd.FilteredQueryViewForm not having any constructors... regardless of the fact it had one, with 3 parameters. I thought parameters can be a problem, so I also created a (public, of course) constructor without parameters, but it still doesn't work. The error message is the same:</p>
  
  <blockquote>
    <p>"Constructor on type 'Shd.FilteredQueryViewForm' not found."</p>
  </blockquote>
  
  <p>And the designer of the derived class won't load.
  I have tried restarting vs2010beta, re-creating the derived form, but nothing seem to help. Google didn't yield any useful results for me on this problem. :(</p>
  
  <p>Is this a problem of Visual Studio 2010 Beta? Or am I doing something wrong?</p>