Hello everyone,

I'm wondering if I could get some advice on the best way to build the user
interface depicted in this diagram:  
http://www.senske.com/images/winforms_layout.jpg

The gray areas will be static throughout.  However, I'd like the blue area
to change to a different interface depending on which of the buttons at left
is pressed.  Should I design the interface for each of the buttons as a
separate custom user control, then swap the controls in and out depending on
which button is pressed?

Or, am I going about it entirely wrong and there's a better approach?

Thanks in advance for any insight.

Andre Ranieri