public static SingletonOrder GetInstance()
{
if (Instance == null)
{
Instance = new SingletonOrder();
}
return(Instance);
}
public PaymentDetails(string cardNumber, string cardName, string securityNumber, string expiryMonth, string expiryYear)
{
CardNumber = cardNumber;
CardName = cardName;
SecurityNumber = securityNumber;
ExpiryMonth = expiryMonth;
ExpiryYear = expiryYear;
_singletonOrder = SingletonOrder.GetInstance();
}