Hide column but access it programmatically
I don't want to make one of the columns visible but I should be able to access its value programatically. Is it possible and how?
Yes, this is possible. Simply by setting the Visible property of the column to false will make the column to be hidden in the UI, but you will still be able to access it programmatically, both server-side and client-side.
To access a cell on the server-side, you can use the Rows/Cells server-side collections:
To access a cell on the client-side, you can use the Rows/Cells client-side collections: