neworder.cs

微软的行业应用解决方案示例

                            (ordersListView.SelectedIndices.Count > 0 &&
                            (ordersListView.SelectedIndices[0] == (ordersListView.Items.Count - 1)))))
            {
                e.Handled = true;
                this.SelectNextControl(ordersListView, true, true, false, true);
            }
        }

        /// <summary>
        /// Launch Help
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void linkLabelHelp_Click(object sender, EventArgs e)
        {
            try
            {
                //Show New Order Help                
                OnlineHelper myHelp = new OnlineHelper("neworder");
                myHelp.ShowDialog();

                //Free the resources of the help form
                myHelp.Dispose();
            }
            catch (Exception ex)
            {
                Services.LogErrors(ex);
                MessageBox.Show(Resources.HelpDisplayError, Resources.SystemError);
            }
        }

        // <summary>
        /// Custom Handling for the back key
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BackKeyDown(object sender, KeyEventArgs e)
        {
            if ((e.KeyCode == System.Windows.Forms.Keys.Back))
            {
                // Back

                // if the back key is hit, close this dialog
                this.Close();
            }
        }

        private void NewOrder_Closing(object sender, CancelEventArgs e)
        {
            //remove the hooks for synchronization
            ClientSyncAgent.Instance.BakgroundSyncBegin -= ClientSyncAgent_SyncBegin;
            ClientSyncAgent.Instance.BakgroundSyncEnd -= ClientSyncAgent_SyncEnd;
        }

        #endregion

        #region Methods

        /// <summary>
        /// Refresh Customer List
        /// </summary>
        private void RefreshCustomerList()
        {
            //Retrieve CustomerCollection
            _customers = GlobalCache.Instance.Customers;

            //Display customer information
            CustomerComboBox.DisplayMember = "CustomerName";
            CustomerComboBox.ValueMember = "CustomerId";
            CustomerComboBox.DataSource = _customers;
        }

        /// <summary>
        /// Set Default Delivery Date
        /// </summary>
        private void SetDefaultDeliveryDate()
        {
            //Set default delivery date to tomorrow
            deliveryDateTimePicker.MinDate = System.DateTime.Today.AddDays(1);
        }

        /// <summary>
        /// attach the event handlers to respond the sync events
        /// </summary>
        private void HandleBackgroundSync()
        {
            ClientSyncAgent.Instance.BakgroundSyncBegin += new EventHandler(ClientSyncAgent_SyncBegin);
            ClientSyncAgent.Instance.BakgroundSyncEnd += new EventHandler(ClientSyncAgent_SyncEnd);
        }

        private void AttachHeader()
        {
            // Create instance of the gradient header
            header = new HardwareDistributor.Controls.GradientHeaders();
            // Attach it to the listview
            header.Attach(ref ordersListView);
            this.Controls.Add(header);
        }

        /// <summary>
        /// Add an item to the list of items in the order
        /// </summary>
        /// <param name="inventory"></param>
        /// <param name="quantity"></param>
        public bool AddInventoryItem(Inventory inventory, int quantity)
        {
            bool success = false;
            try
            {
                //Get item price
                decimal _price = quantity * inventory.Price.Value;

                //Get total price
                _totalPrice += _price;


                //Verify there's enough hardware left in stock
                if (inventory.InStock >= quantity)
                {
                    //Add Quantity
                    ListViewItem lvi = new ListViewItem(quantity.ToString());

                    //Add Inventory Name					
                    lvi.SubItems.Add(inventory.InventoryName.Trim());

                    //Add Inventory ID
                    lvi.SubItems.Add(inventory.InventoryId.ToString());

                    //Add ListView Items to ListView
                    ordersListView.Items.Add(lvi);

                    //Update column header
                    ordersListView.Columns[1].Text = Resources.Hardware + "   $ " + _totalPrice.ToString();

                    success = true;
                }
                else
                {
                    MessageBox.Show(Resources.QtyExceedsStockDetailedMessage, Resources.QtyExceedsStockMessage);
                }
            }
            catch (Exception ex)
            {
                Business.Services.LogErrors(ex);
                MessageBox.Show(Resources.AddingItemsError, Resources.SystemError);
            }

            return success;
        }

        

        /// <summary>
        /// Removes inventory item from list and recalculate the total
        /// </summary>
        /// <param name="item"></param>
        private void RemoveInventoryItem(ListViewItem item)
        {

            int _qty = int.Parse(item.SubItems[0].Text);
            int _inventoryId = int.Parse(item.SubItems[2].Text);

            //Get price based on InventoryId
            decimal _price = Services.GetPrice(_inventoryId);
            //Get Subtotal based on Qty
            decimal _subTotal = _qty * _price;

            //Subtract price from Total Price
            _totalPrice -= _subTotal;

            //Update column header
            ordersListView.Columns[1].Text = Resources.Hardware + "   $ " + _totalPrice.ToString();

            //Remove item from list
            ordersListView.Items.Remove(item);
        }

        /// <summary>
        /// Display status in form. Wait for the specified timeout so that the user can see the message
        /// before returning
        /// </summary>
        /// <param name="statusText"></param>
        /// <param name="timeout"></param>
        private void DisplayStatus(string statusText, int timeout)
        {
            //Network isn't available
            statusBarLabel.Visible = true;
            statusBarLabel.Text = statusText;

            Application.DoEvents();
            System.Threading.Thread.Sleep(timeout);
            Application.DoEvents();

        }

        /// <summary>
        /// clear the status of the form.
        /// </summary>
        private void ClearStatus()
        {
            statusBarLabel.Text = string.Empty;
            statusBarLabel.Visible = false;
        }


        /// <summary>
        /// create the order in client DB 
        /// </summary>
        private void CreateOrder()
        {
            try
            {
                //Get Customer
                Customer customer = (Customer)CustomerComboBox.SelectedItem;

                //Get Delivery Date
                string deliveryDate = deliveryDateTimePicker.Value.ToShortDateString();

                //Get collection of items in ListView
                ListView.ListViewItemCollection orderItems = ordersListView.Items;

                Order myOrder = GetOrderDetails(customer.CustomerId.Value, 
                                    deliveryDate, orderItems);
                
                Business.Services.SaveOrder(myOrder);
                
            }
            catch (Exception ex)
            {
                throw new Utilities.WrapperException(Resources.OrderCreationError, ex);
            }
        }

        /// <summary>
        /// collates the order details and returns an order object
        /// </summary>
        /// <param name="customerId"></param>
        /// <param name="deliveryDate"></param>
        /// <param name="orderItems"></param>
        /// <returns></returns>
        private static Order GetOrderDetails(int customerId, string deliveryDate, ListView.ListViewItemCollection orderItems)
        {
            Order order = new Order();

            order.OrderState = OrderState.Placed;
            order.DeliveryDate = Convert.ToDateTime(deliveryDate);
            order.CustomerId = customerId;

            //attach order details
            foreach (ListViewItem item in orderItems)
            {
                OrderDetail detail = new OrderDetail();
                detail.InventoryId = int.Parse(item.SubItems[2].Text);
                detail.Quantity = int.Parse(item.SubItems[0].Text);
                order.OrderDetails.Add(detail);
            }
            return order;
        }

        private void ShowNotification()
        {
			HtmlFormEx notificationsForm = new HtmlFormEx(Resources.CustomerService,
                                                    Resources.NewOrder,
                                                    Resources.SyncAfterNewOrderMessage,
                                                    string.Empty);
			notificationsForm.ShowDialog();
			notificationsForm.Dispose();

            //bring back focus
            this.Activate();
        }

        #endregion

    }
}