[2.0] Method call wait for user interaction

[SLH]

In part of my code, seperate to the GUI i need the user to make a choice, ideally by clicking on a choice of (my) usercontrols.

I noticed that the method for doing a drag-drop operation is like this:

Card_MouseDown(object sender, MouseEventArgs e)
        {
            // Start the dragging process
            DragDropEffects effect = DoDragDrop(sender,DragDropEffects.Copy);
//handle dragdrop
}

The code in handle dragdrop isn't reached until the user has done the necessisary drag, and let go (i.e. DoDragDrop seems to wait for the user interaction).

Is there some way i could do something similar to this for a method of selecting between my user controls.

e.g.

Control OneSelectedControl = GetUserSelection();
Control SecondSelectedControl = GetUserSelection();

Thanks for any help.