I have a RadGrid, a textbox and submit button on my form. The textbox will only allow numbers. My grid is populated with data. What I need to do is to take what the user entered in the textbox, take that value and get a random number out of it and then fill up one of the columns in the table with these random numbers. So if I have 50 rows, I would be filling it with 50 random numbers. Which event would I need to handle to accomplish this? Thanks.