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  1. #1
    Cade Guest


    How can I Validate the users creditcard number using asp?<BR>I have CreditCardNumber, expiration date, Name on card in the DB<BR>I just need to Validate the CC.

  2. #2
    Join Date
    Dec 1969

    Default Credit Card Validation--or just checksum?

    You have to sign up with one of the on-line validation services and do what they tell you to do.<BR><BR>If you mean you just want to check to see if the number is a "legal" one--that is, that it has the correct checksum digits in place--then that&#039s just a little bit of simple math. I don&#039t know the algorithm, but you should be able to find it published somewhere. Or ask the bank where you are submitting these charges to.<BR><BR>

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