On column controlSource, try left(code, 4) + "-" + right(code, 3)

Florin

>Dear Experts

>I am using VFP6, I have a table, entitled master, fields as

>code c(7)
>detail c(40)

>Both fields are charcter type.

>To show the data of this table I use a grid.

>In the first column of grid I want to show code field in the following format

>1401-001
>1601-005
>1802-155

>What and where inputmask or format should I apply?

>Please help me