//Sales Receipt
        public ActionResult SalesReceipt(int?id)
        {
            if (id == null)
            {
                return(RedirectToAction("Error", "Home"));
            }

            SalesReceipt_ViewModel salesReceiptVM = salesBll.GetSalesDetail(id);

            if (salesReceiptVM == null)
            {
                return(RedirectToAction("Error", "Home"));
            }
            return(View(salesReceiptVM));
        }