/// <summary>
/// Constructor.
/// Connects to the Controller Layer
/// Retrieves from the controller layer all order headers and shows them in the datagrid
/// </summary>
public MainView()
{
InitializeComponent();
this.layer = new LogicLayer();
allOrderHeaders = layer.GetOrderHeaders();
dgMainMenu.ItemsSource = allOrderHeaders;
this.Topmost = true;
}
/// <summary>
/// 1. Assigns the orderheader object to the order header id
/// 2. If an orderheader(from 1. ) is not found, then a new one is created
/// 3. Hides "Add" button and "Submit" button if order state is "Complete".
/// 4. Displays the order items inside the datagrid
/// 5. Adds each order item price and calculates the total
/// 6. Displays all the information inside textboxes.
/// </summary>
public void UpdateInfo()
{
bool exitLoop = false;
List <OrderHeader> allOrders = layer.GetOrderHeaders();
DateTime orderTime;
int orderHeaderState;
//1. Assigns the orderheader object to the order header id
for (int i = 0; i < allOrders.Count; i++)
{
if (allOrders.ElementAt(i).Id == orderHeaderId)
{
orderTime = allOrders.ElementAt(i).DateTime;
orderHeaderState = allOrders.ElementAt(i).State;
currentOrderHeader = new OrderHeader(orderTime, orderHeaderId, orderHeaderState);
exitLoop = true;
}
}
// 2. If an orderheader(from 1. ) is not found, then a new one is created
switch (exitLoop)
{
case false:
orderTime = DateTime.Now;
orderHeaderState = (int)Enum.Parse(typeof(OrderStates), "New");
currentOrderHeader = new OrderHeader(orderTime, orderHeaderId, orderHeaderState);
break;
}
// 3. Hides "Add" button and "Submit" button if order state is "Complete".
if (currentOrderHeader.State == (int)Enum.Parse(typeof(OrderStates), "Complete"))
{
Btn_Add_Order.Visibility = Visibility.Hidden;
Btn_Submit.Visibility = Visibility.Hidden;
}
// 4. Displays the order items inside the datagrid
currentOrders = layer.ProcessOrder(currentOrderHeader.Id);
dgOrderItem.ItemsSource = currentOrders;
// 5. Adds each order item price and calculates the total
double total = 0;
for (int i = 0; i < currentOrders.Count; i++)
{
total += currentOrders.ElementAt(i).Total;
}
// 6. Displays all the information inside textboxes.
textbox_order.Text = "Order : #" + orderHeaderId;
OrderStates currentState = (OrderStates)currentOrderHeader.State;
textbox_datetime.Text = "Order Time : " + currentOrderHeader.DateTime;
textbox_state.Text = "State : " + currentState;
textbox_total.Text = "Total : " + String.Format("{0:c}", total);
}