Jelle Druyts

In this article on sealed controls, Ingo looks into the details of the ImageList and the reason this class (and other controls) are sealed.

His conclusion:
"Don't cry foul whenever you encounter sealed in some framework. The designers might have had their reasons for using it, and the implications of NOT using sealed might be bigger than you can imagine at first glance. In the case of the ImageList it would have meant to rewrite ALL windows forms controls in purely managed code instead of just wrapping the underlying Win32 controls."

Well that about sums it up, now I guess we'll just have to wait until they do rewrite all controls in .NET before we can actually start extending them. Or we can just use alternatives such as Magic or Genghis.

I liked Ingo's idea to insert a proxy for the ImageList by the way - but I wouldn't expect any less from a remoting addict