protected void ButtonUpdate_Click(object sender, EventArgs e)
 {
     PurchaseOrderSearchDTO dto = new PurchaseOrderSearchDTO();
     dto.SupplierID = 3;
     using (PurchaseOrderManager pom = new PurchaseOrderManager())
     {
         List<PurchaseOrder> po = pom.FindPurchaseOrderByCriteria(dto);
         po[0].DONumber = "88888";
         PurchaseOrder poUpdated = pom.UpdatePurchaseOrder(po[0]);
     }
 }
        protected void btnConfirm_Click(object sender, EventArgs e)
        {
            using (PurchaseOrderManager pom = new PurchaseOrderManager())
            {
                PurchaseOrder po = pom.FindPurchaseOrderByID(int.Parse(Request.QueryString["ID"]));
                po.DONumber = txtDONumber.Text.ToString();
                po.IsDelivered = true;
                po.DateReceived = Convert.ToDateTime(txtReceivedDate.Text.ToString());
                po.ReceivedBy = Membership.GetCurrentLoggedInUser().UserID;
                pom.UpdatePurchaseOrder(po);

                using (AdjustmentVoucherManager avm = new AdjustmentVoucherManager())
                {
                    SA33.Team12.SSIS.DAL.AdjustmentVoucher av = new SA33.Team12.SSIS.DAL.AdjustmentVoucher();
                    av.VoucherNumber = avm.GenerateVoucherNumber();
                    av.CreatedBy = Membership.GetCurrentLoggedInUser().UserID;
                    av.DateIssued = po.DateOfOrder;
                    av.DateApproved = DateTime.Now;
                    av.ApprovedBy = Membership.GetCurrentLoggedInUser().UserID;

                    foreach (PurchaseOrderItem item in po.PurchaseOrderItems)
                    {
                        // generate stocklog for each poItem
                        StockLog log = new StockLog();
                        log.AdjustmentVoucher = av;
                        log.Balance = item.Stationery.QuantityInHand;
                        log.Quantity = item.QuantityToOrder;
                        log.Reason = "Supplier - " + po.Supplier.CompanyName;
                        log.StationeryID = item.StationeryID;
                        log.Type = 3;           // "replenishment" accroding to enu in DAL.AdjustmentVoucherDAO
                        log.Price = item.Price;
                        log.DateCreated = DateTime.Now;
                        av.StockLogs.Add(log);

                        // update replensih stationery stock
                         using (CatalogManager cm = new CatalogManager())
                        {
                            item.Stationery.QuantityInHand = item.Stationery.QuantityInHand + item.QuantityToOrder;
                            cm.UpdateStationery(item.Stationery);
                        }
                    }
                    avm.CreateAdjustmentVoucher(av);
                }
            }

            Response.Redirect("ViewPurchaseOrder.aspx");
        }