How could I get alternate COLUMN colors? Note, not alternate ROW colors.
In actual fact, I don't just want alternating column colors, I want column 1 and 2 to have the same color, 3 and 4 a different color, then 5 and 6 the same as 1 and 2 and so on. Also, I want a cell to be completely filled with the particular color so I figure I have to work on the <td> level.
I thought I had it by hooking the OnCellRender event but my logic falls apart when you start clicking on the grid! None of the properties on the GridCellRenderEventArgs object tells you which column's cell is being rendered. The Item property contains the entire row context. Unfortunately the cell value does not contain any information either in my case to identify the column of it's index.