Grigore,

If my memory serves me right, you can not add object to Control class. You should use container or custom class instead.

>Hi, everyone.
>
>I have a control base class (that's it: the base class is "control"). I can add objects to it. But if I subclass it, I cannot add objects in design time in the subclass. The error message is shown in the thread title.
>
>This means if I need several controls based on Control class, I have to subclass each of them from native base class and copy&paste the common methods/properties? If yes, then where's the OOP here?