I have a datagrid on a form with fields above and below. The datagrid displays 3 rows. I have custom renderers in the datagrid columns. When more than 3 rows exists, the datagrid will scroll when I move the cursor above or below the datagrid. When I open the combobox on the last visable row and move to the bottom of that list the datagrid autscrolls and closes the combobox list before I can make a selection.