/*cancelling one payment od invoice at the time*/
public void cancelInvoicePaymentEXT(int paymentID)
{
using (var ctx = new AccContexts())
using (var ts = new TransactionScope())
{
accounting.classes.externalPayment payment = new accounting.classes.externalPayment();
payment.loadByPaymentID(paymentID);
List<int> transactions = payment.cancelPayment(enums.paymentAction.Void);
/*Record Invoice Payment transactions*/
this.RecordInvoicePaymentTransactions(transactions, paymentID, enums.paymentStat.VoidApproved);
/*Record Invoice Transaction*/
if(payment.extPaymentTypeID==(int)enums.extPaymentType.CreditPayment)
this.RecordInvoiceTransaction(transactions, enums.invoiceStat.partialCreditCardPaymantCancelled);
if (payment.extPaymentTypeID == (int)enums.extPaymentType.InteracPayment)
this.RecordInvoiceTransaction(transactions, enums.invoiceStat.partialInteracPaymantCancelled);
ts.Complete();
}
}