private void bSave_Click(object sender, EventArgs e)
{
ContractRepository crep = new ContractRepository();
Contract contract = crep.getContract(contractId);
PaymentRepository repository = new PaymentRepository();
PersianDateFormatter pdf = new PersianDateFormatter();
Payment payment = new Payment();
payment.ContractId = contractId;
payment.AmountOfPayment = Convert.ToInt32(tPayment.Text);
payment.DateOfPayment = pdf.convert(tPaymentDate.Text);
DateModel dm = pdf.getSplittedDateIntegers(payment.DateOfPayment.Value);
payment.Year = dm.Year;
payment.Month = dm.Month;
payment.Day = dm.Day;
contract.Payment += payment.AmountOfPayment;
repository.addPayment(payment);
crep.updateContract(contract);
}
