protected void btnReceive_Click(object sender, EventArgs e)
        {
            if (orderDetailslist.Count > 0)
            {
                Order o1 = new Order();
                o1 = ios.FindOrderById(poNumber);
                if (o1.Status != "Delivered")
                {
                    int p = o1.PoNumber;
                    o1.DateDelivery = DateTime.Today;
                    o1.Status       = "Delivered";
                    ios.UpdateOrder(o1);
                    for (int i = 0; i < orderDetailslist.Count(); i++)
                    {
                        Stationery      s0  = new Stationery();
                        StockManagement sm0 = new StockManagement();
                        s0 = iss.FindStationeryById(orderDetailslist.ElementAt(i).ItemCode);
                        s0.QuantityInStock = s0.QuantityInStock + orderDetailslist.ElementAt(i).Quantity;

                        sm0.Date         = DateTime.Today;
                        sm0.ItemCode     = orderDetailslist.ElementAt(i).ItemCode;
                        sm0.StoreClerkId = (int)Session["employeeId"];
                        sm0.Source       = "ORD";
                        sm0.SourceId     = p;
                        sm0.QtyAdjusted  = orderDetailslist.ElementAt(i).Quantity;
                        sm0.Balance      = s0.QuantityInStock;
                        ism.AddStockManagement(sm0);

                        iss.UpdateStationery(s0);
                        Iod.UpdateOrderDetail(orderDetailslist.ElementAt(i));
                    }
                }
                else
                {
                    for (int i = 0; i < orderDetailslist.Count(); i++)
                    {
                        Iod.UpdateOrderDetail(orderDetailslist.ElementAt(i));
                    }
                }
                Response.Redirect("~/Store/RaisePurchaseOrder_OrderList.aspx");
            }
            else
            {
                Response.Write("<script>alert('No item to receive!');</script>");
                Response.Write("<script language=javascript>history.go(-1);</script>");
            }
        }