Off the top of my head... implement an ASP .NET web service.
Credit cards use the mod 10 luhn algorithm to add the last check digit - and that validates the card number - google "luhn".
To check the card type, have a look at the first digit to see if it matches the card type that the user selected - afair 4 is visa, 5 is mastercard, 6 is switch/solo. You should be able to find a full list somewhere on the web.
To check the card details properly you'd have to hook up to a financial institution database.
How To Credit Card validation
SavasCilve
Off the top of my head... implement an ASP .NET web service.
Credit cards use the mod 10 luhn algorithm to add the last check digit - and that validates the card number - google "luhn".
To check the card type, have a look at the first digit to see if it matches the card type that the user selected - afair 4 is visa, 5 is mastercard, 6 is switch/solo. You should be able to find a full list somewhere on the web.
To check the card details properly you'd have to hook up to a financial institution database.