Credit card validation and parsing utilities for .Net Compact framework 3.5

Question

I have payment gateway integration in my application developed using .Net Compact framework 3.5.

Is there any "Credit card validation and parsing utilities" that i can use in my application or is there any class that i can use to identify the type of the card?

Answer 1

Google for Lunn or Luhn validation. This will simply validate that the cc number is a valid sequence, but you will need to obviously validate that against the provider.

The same links may provide you with the prefixes used by several card companies.

Answer 2

Try Subsonic.Sugar .. then you could do somethign like this

 protected void ValidateCardServerValidate(object source, ServerValidateEventArgs args)

{ bool cardValidate; string item = ddlCardType.SelectedItem.Text.ToUpper();

if (item == "MASTERCARD")
  cardValidate = SubSonic.Sugar.Validation.IsCreditCardMasterCard(args.Value);
else if (item == "VISA")
  cardValidate = SubSonic.Sugar.Validation.IsCreditCardVisa(args.Value);
else if (item == "ACME")
  cardValidate = SubSonic.Sugar.Validation.IsCreditCardDinersClub(args.Value);
else if (item == "DINERS")
  cardValidate = SubSonic.Sugar.Validation.IsCreditCardAmericanExpress(args.Value);
else
  cardValidate = SubSonic.Sugar.Validation.IsCreditCardAny(args.Value);

args.IsValid = cardValidate;

}