What VFP You are using?

>Hi
>
>Thanks for replying. It is not working for me. It gave syntax error. Then I adjusted quotes. But now it says "invalid input mask" at run time. I am using it as ..
>
>thisform.Grid1.Column3.DynamicInputMask = "IIF(EMPTY("+thisform.Grid1.RecordSource + ".phone),'','@R (###)###-####')"
>
>
>column3 is grid column with phone #
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>phone is the name of field in table(query)
>
>Thanks