In Windows Forms it\'s easy to inherit one user control from another. The inherited control contains all the controls of the parent form, and you can add some more. Can the
You could certainly inherit the base user control in code and insert your additional controls in code, if you are talking building in a visual designer then I'm not sure. I'm aware of creating composite controls from both system.web controls and user controls so there's no reason that your new control couldn't contain another user control with additional controls added around it.