I've changed my thinking.

Instead of changing select options based on the value of another cell in the next column, I'm changing the select options based on the value of the current cell.

I'm still having problems trying to set the select options prior to displaying the grid.

Thank you for replying.

I've heard that 'onSelectRow' is disabled when the cell is editable.

I'll look more into this though.

Thanks again.

John