>I would like to have a certain value in a text box
>field in a GRID. Can I get this value by calling a function
>that returns a value to this textbox?

Robert-
you can do what you want to do, but I think that you are approaching the issue from the wrong direction. A textbox in a grid is a bound control. This means that it shows the contents of the field that it is bound to, and that changes made to the value of the control are also made to the underlying data. What you really want to do is change the value of the field that the textbox is tied to. If the controlssource for the column that contains the textbox is a calculated field, then put your logic in the calculation. If the value you want to change is for a specific record, then perform your calculations (function or whatever) on that field for that record. HTH