public static int AddSale(LTS.Sale sale) { int?SaleID = -1; try { using (LTS.LTSBase access = new LTS.LTSDC()) { access.InsertSale(sale.CustID, sale.EmpID, sale.Paid, sale.SaleDate, sale.StockID, ref SaleID); } } catch (Exception ex) { } return(SaleID.Value); }