I have a column that will show dollar amounts in the millions. I want the data to display with comma separators. The underlying data is stored as an integer ( although this is not cast in stone and can be made to be decimal if need be ). If I use a GridMaskedColumn, I get the thousands separators, but it gives an error on the input type when I try to save it. I'm using the autogenerated edit forms for this. The mask is "###,###,###". So I guess I need to get the data and convert it back to integer to save it. Where do I go to cast this back to an integer? Thanks.