-- card: 13762 from stack: in.0 -- bmap block id: 0 -- flags: 0000 -- background id: 3797 -- name: -- part contents for background part 1 ----- text ----- From: Chuq Von Rospach Date: Fri, 8 Jan 88 9:00 PST There is a message you can trap on called CloseField. during data entry, then, you can add a script to the field, card, or stack that does something like: on CloseField if (field < 0 || field > 23) then answer "field not within range" with "OK" field = emtpy endif end CloseField This has a problem in that it doesn't force them to correct the answer, although you can then trap for empty fields on a closeCard and and force them to fix the card before allowing them to leave. chuq -- part contents for background part 45 ----- text ----- Re: Input Validation