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Custom User Control Repaint Problem in Designer View

Posted on 2007-03-30
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Last Modified: 2008-01-09
I'm making a custom user control where I override the paint function and do my own drawing... When I change properties of the control (Color, etc...), it doesn't repaint.  I have to actually close the designer form and reopen it to see the changes...

I tried this...

private Color m_BackgroundColor = Color.White;
public Color BackgroundColor
{
      get
      {
            return m_BackgroundColor;
      }
      set
      {
            m_BackgroundColor = value;
            Invalidate();
      }
}


But this doesn't appear to be working to redraw in designer mode.

Any suggestions?


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Question by:collages
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2 Comments
 
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Accepted Solution

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ironwill96 earned 500 total points
ID: 18886455
Apparently to change how it works in design time you have to write a custom designer as well.

See references here: http://msdn.microsoft.com/msdnmag/issues/04/12/CustomFormsDesigner/default.aspx
and here: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/custdsgnrdotnet.asp

Hope that helps some.  Seems like a pain but I guess the default design behavior is just generated from what is exposed but doesnt do anything fancy.

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Author Comment

by:collages
ID: 19009310
Excellent answer.  Thank you!
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