I am working with an UltrawebGrid and what I want to do is set the value of a cell.  I am taking values from the grid performing a calculation.  Based on if that calculation equals what they entered into that cell I want the user to have the ability to choose what value ends up in that column.  If they are the same nothing happens.  If they are different a confirm message box pops up if they click ok I want to set the cell value to the calculated variable. If they choose cancel set the cell to the entered value, which really nothing needs to happen.  Everything is working for me except when I go to set the cell value.  cell.set(cellId, calcValue); returns as undefined and I am not sure what I am doing wrong.  I attached my JavaScript in a text file for anyone who needs to see