Windows Form UserControl design time properties

Posted by Raffaeu on Stack Overflow See other posts from Stack Overflow or by Raffaeu
Published on 2010-12-21T13:49:41Z Indexed on 2010/12/21 13:54 UTC
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c#

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design-time

I am struggling with a UserControl. I have a UserControl that represent a Pager and it has a Presenter object property exposed in this way:

[Browsable(false)]
[DesignSerializationAttribute(DesignSerializationAttribute.Hidden)]    
public object Presenter { get; set; }

The code itself works as I can drag and drop a control into a Windows From without having Visual Studio initializing this property. Now, because in the Load event of this control I call a method of the Presenter that at run-time is null ... I have introduced this additional code:

public override void OnLoad(...)
{
   if (this.DesignMode)
   {
      base.OnLoad(e);
      return;
   }
   presenter.OnViewReady();
}

Now, every time I open a Window that contains this UserControl, Visual Studio modifies the Windows designer code. So, as soon as I open it, VS ask me if I want to save it ... and of course, if I add a control to the Window, it doesn't keep the changes ... As soon as I remove the UserControl Pager the problem disappears ... How should I tackle that in the proper way? I just don't want that the presenter property is initialized at design time as it is injected at runtime ...

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