>Hi,
>
>1. on Combo if I press enter key without changing value showing in combo not validating while UP arrow key or down arrow key or mouse selection validating ...how can I put my valid statement to validate direct through enter ket without changing default value in combo.
>
>Please help

I just tried this code in the LOSTFOCUS of a textbox control and it worked.

IF THIS.VALUE <> 'TEST'
  NODEFAULT
ENDIF