>Hi,
>
>I have a grid on my form which a check box in it. There is no controlsource assigned to it. All other controls in the grid are assinged with a controlsource. The problem is, when I run the form and click on the checkbox control, I am getting and error Data type mismatch. Can any body tell me why the error message is comming and the solution for this.
>
>Thanks in Advance

Columns on grids just don't work right without a controlsource. Create a controlsource for this column, even if it means building a temporary cursor or view for everything.