Have you seen Nikolai Neklioudov's UniversalDragDropper? See

Download#9899

>I have a grid with over 30 columns. At any point in time many of the columns have Visible set to .F. Still there are too many columns and the user must use the horizontal scroll bar. No big deal.
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>I need to drag-and-drop from one cell to another. Don't touch the horizontal scroll bar and everything works fine. I use GridHitTest inside the grid's DragDrop Event to tell me where the user does the drop. Once I move things around using the horizontal scroll bar and then try drag-and-drop, the GridHitTest nCol becomes less than reliable.
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>Any thoughts?
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>If I knew which columns have been scrolled off to the left, I could compute the drop column from the x and y coordinates. Does anyone know how to tell which columns are scrolled off?
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>My columns contain Edit Boxes. When I am dragging, DragOver for the Edits would be helpful. Only the DragOver for the grid fires. Not very helpful.
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>Tim