public void Update(int PaymentScheduleKey,int CurrencySender,int CurrencyReceiver,DateTime TimeToDelivery)
{
PaymentSchedule item = new PaymentSchedule();
item.MarkOld();
item.IsLoaded = true;
item.PaymentScheduleKey = PaymentScheduleKey;
item.CurrencySender = CurrencySender;
item.CurrencyReceiver = CurrencyReceiver;
item.TimeToDelivery = TimeToDelivery;
item.Save(UserName);
}