Have you tried the valid event of the column's texbox?

>Hello Tore
>
>Thanks, but if i need control only one column where this controlsource is BI.ARTICLE, why use FOR ... ENDFOR
>
>Simply, i need
>
>IF mycolumn,controlsource = BI.ARTICLE
>Keep my actual value in variable
>.....do something
>ENDIF
>
>or
>
>
>IF mycolumn,controlsource = BI.ARTICLE and myvariable not like myactualvalue then
>Keep my actual value in variable
>.....do something
>ENDIF
>
>A little sample it will be nice.
>Best regards
>Luis Santos