You can specify which cards should pass validation by configuring the validation options. If the sum modulus 10 is zero, then the card number is valid. By default, all supported card types are allowed. The actual algorithm runs on the array of digits, calculating a checksum. The card number should consist only of digits. ![]() This function takes a string with the credit card number as a parameter. New CardTypeInfo( " ^(2131|1800)", 15, CardType.JCB), Below is the method which you can use to run checksum validation using Luhn Algorithm. ![]() New CardTypeInfo( " ^(3)", 16, CardType.JCB), If you havent already figured it out, then our test card number generator and validator uses Luhn algorithm / formula a.k.a the mod 10 check to generate and validate dummy card numbers. New CardTypeInfo( " ^(6011)", 16, CardType.Discover), Any Software developer or your payment gateway developer can generate and validate dummy credit card numbers here and use it for integration testing. New CardTypeInfo( " ^(4)", 13, CardType.VISA), New CardTypeInfo( " ^(4)", 16, CardType.VISA), private static CardTypeInfo _cardTypeInfo = Used by GetCardType() to identify credit card types. Public CardTypeInfo( string regEx, int length, CardType type)
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