private void frmPayment_Load(object sender, System.EventArgs e)
{
DataTable dtMOPs = billingRepository.GetMOPs();
gcMOP.DataSource = dtMOPs;
txtItemQuantity.EditValue = billObj.Quantity;
txtBilledAmount.EditValue = billObj.Amount;
decimal.TryParse(billObj.Amount.ToString(), out billedAmount);
payableAmount = billedAmount;
remainingAmount = billedAmount;
cashRowHandle = gvMOP.LocateByValue("MOPNAME", "Cash");
cashRowHandle = cashRowHandle < 0 ? gvMOP.LocateByValue("MOPNAME", "CASH") : cashRowHandle;
UpdateLabels();
}