I've gotta be missing something simple, but I have a datagrid on a Web form that is bound to a SQL server table. The data displays fine in the grid, but when I click on a cell, it does not appear to be selected. I programmatically set the selected index to 5 initially (and that row appears selected), then click on a different row. No change in the appearance of the grid, and the selected index is still 5. What am I missing? (Columns are NOT read only).

TIA,
Gary