I have a barcode scanner system and I would like to use it to validate event tickets (barcoded) as people com
in the door. Since each ticket would have a unique value represented by a barcode, I could pre-load the authorized
ticket numbers to either Excel or Access and check against these values as they are scanned
My question is, how could I validate the numbers by doing a lookup in that column and ideally I would like to inser
a value or something that would disallow that same code to be validated a second time

Any help would be greatly appreciated

Thanks

d.