>This is not correct. You can add objects to Control class ONLY if you are working with the first level of subclassing. Any other level does not allow you to add.
>
>Actually, this is what I have asked - why this class behaves so differently than the others? Is this by design? if yes, then it's a _bad_ design ;)

This is indeed by design (see my other post) and many people do believe that the control class is pretty useless because of it. The main purpose of the control class is to build a control that can be extended with code, but without adding more objects. More objects would mean it is a different control. You could add all the objects you need and show/hide them as appropriate or just design different controls for each purpose.

And if you don't like that, then you can just use a container instead of control. And you may want to do that and mark the objects as protected to see if you still get your desired outcome.

HTH,
Chad