public bool ChangeCardPayment(CardPayment cardPayment)
        {
            if (db.CardPayments.Where(cp => cp.CardPaymentID == cardPayment.CardPaymentID).Count() != 0)
            {
                var entry = db.Entry <CardPayment>(cardPayment);

                entry.State = EntityState.Modified;
            }

            return(db.SaveChanges() > 0);
        }
        public bool DeleteCardPayment(CardPayment cardPayment)
        {
            if (db.CardPayments.Where(cp => cp == cardPayment).Count() != 0)
            {
                var entry = db.Entry <CardPayment>(cardPayment);

                entry.State = EntityState.Deleted;
            }

            return(db.SaveChanges() > 0);
        }
        public bool InsertCardPayment(CardPayment newCardPayment)
        {
            db.CardPayments.Add(newCardPayment);

            return(db.SaveChanges() > 0);
        }