Hello Mark.

>> Sparse is set to False. My understanding was that DynamicCurrentControl is re-evaluated every time a row is changed. Is that right? <<

DynamicCurrentControl is re-evaluated whenever the grid is refreshed(). Changing a row implicitly refreshes the grid in much the same way that you can cause the grid to refresh itself by setting focus to it.

>> Also I added grid.refresh into AfterRowColumnChange but it did not help. <<

I am really at a loss to explain why you can't get this to work.