I have a form where an admin will manually enter barcode of various products. I want to validate whether this code is in correct format or not. Is there any generic method to do this like validating Credit card numbers and SSN?
2007-05-15 20:27:00 · 3 answers · asked by Anzer 1 in Computers & Internet ➔ Programming & Design
What do you mean by "manually enter"?
If you use a barcode scanner, the scanner will validate the code and will not accept anything not valid.
If they are just typing in the number, then it depends on which symbology of barcode they're using. Code 128 has a checksum, but not Code 39. UPC/EAN has a check digit you must calculate.
So there's no "generic" answer. You'll need to find out which barcode symbology they're using.
2007-05-15 21:27:15 · answer #1 · answered by Kasey C 7 · 0⤊ 0⤋
extremely tough step. check out on to a search engine. that can help!
2014-12-02 22:48:04 · answer #2 · answered by Anonymous · 0⤊ 0⤋
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2013-10-05 16:34:56 · answer #3 · answered by Anonymous · 0⤊ 0⤋