public PaymentCard(String nameOnCard, String cardNumber, DateTime expirationDate, String cardCode, PaymentCardTypeEnum cardType)
            : base()
        {
            CardNumber     = cardNumber;
            ExpirationDate = expirationDate;

            if (!String.IsNullOrWhiteSpace(cardCode))
            {
                CardCode = cardCode;
            }

            NameOnCard = nameOnCard;
            CardType   = cardType;
        }
 public PaymentCard(String cardNumber, DateTime expirationDate, String cardCode, PaymentCardTypeEnum cardType)
     : this(string.Empty, cardNumber, expirationDate, cardCode, cardType)
 {
 }