Anybody know to to validate a container field

[beckham]

Hi, does anyone know how to validate a container field as unique?

I am placing a barcode graphic into a container field and want to ensure that barcode can't get assigned to another record.

Thanks for any help..

 

[bcooney]

Two ideas:

• Create another field, type text, with an auto-enter calc = getastext(barcode_graphic). Set that field's validation to unique.
• or
• Create another field, type text, with an auto-enter calc = Base64Encode ( barcode_graphic ). Set that field's validation to unique.

[beckham]

Thank you so much...