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1. Not sure.
2. Anchoring allows you to latch a control on to one of the form's corners. Docking allows a control to bind itself to an edge in the form or conatiner control. When you resize the container, the control resizes itself to fit the entire edge. (one edge or all 4). You can't dock and anchor at the same time. One or the other.
3. Do you mean Visual Studio.net?