I'm working on a UserControl in C# which allows other controls to be drawn onto it (Much like a Panel or GroupBox control).
However, now I want to define the area in which controls can be placed and drawn - the TabControl control is a good example of this, controls can only be placed in the rectangle shown with the dashed line. How can I define this area in my own User Control
Thanks in advance

Defining where 'child' controls can be placed