Hi Rick and Nick,

Thank's for your responses, i try that a litle a go, and the error go out, but the control source for column3 and 4, didn't work, the grid show me the for first 4 fields in cursor1, and not the first 2 and last 2.

Why didn'd fix the controlsource for n_desc1 and n_desc2.

Thank's in advance

João Batista