Create a textbox class with the valid code you want and use this class in your grid.

HTH

>I created a form, with a grid object (presemb_grd) with no columns
>
>in the Init method of the form i added the following code
>
>with THISFORM.presemb_grd
> .columncount = 2
> .column1.controlsource = "SUBSTR(bcl.bcnudos,2,8)"
> .Column1.Header1.Caption = "Dossier"
> .Column1.width=12
> .column2.controlsource = "bcl.bclig"
> .Column2.Header1.Caption = "N°"
> .Column2.width=5
>endwith
>
>This works correctly.
>
>My question is : I want in my program to add some code to the valid event of the text object of Column2. Is this possible