I have listbox in a grid. It will always work correctly when controlled with the mouse, but if you then try to use keystrokes (up and down arrow keys) to move up-and-down the list box, it reduces to it's retracted shape the first time you press a key.

In other words... control it with the mouse and make a selection, (focus stays on the listbox), press alt+down arrow to drop down the listbox, then try to move the cursor up or down the listbox and it collapses to it's minimized state.

If you always use keys it's fine, but keys-mouse-keys will cause wierd key controlling.

Please help me with this tough one.