Hi Coco,
The general idea would be to develop the custom ImageButton control (if
there's no such control in Windows Forms), and create a custom column style
derived from ButtonColumn that would use the ImageButton control.
See also the following HOWTO article in MSDN library (use the search to
locate the article by its title):
"How to: Disable Buttons in a Button Column in the Windows Forms
DataGridView Control "
