How can i write a sum formula that will sum from the first cell in the column to the cull above the current cell.
I tried
IF( IsError([Cellx(-1)]),0, SUM([Cellx(0)], [Cellx(-1)]))
but that doesn't work.
There's no way to do that. You cannot specify a range of cells.
You should Submit a feature request to Infragistics.