Exemplo n.º 1
0
 private void LoadInvoice(int invoiceID)
 {
     try
     {
         invoice = sqlProvider.GetInvoice(invoiceID.ToString());
         if (invoice == null)
         {
             throw new Exception("Failed to retrieve the invoice from the database");
         }
         lineItems = sqlProvider.GetInvoiceLineItems(invoiceID.ToString());
         if (lineItems == null)
         {
             throw new Exception("Failed to retrieve line items from the database");
         }
         DateTime invoiceDate;
         if (DateTime.TryParse(invoice.sInvoiceDate, out invoiceDate))
         {
             dpInvoiceDate.SelectedDate = invoiceDate;
         }
         else
         {
             MessageBox.Show("Failed to load invoice date.");
         }
         int totalCost;
         if (int.TryParse(invoice.sTotalCost, out totalCost))
         {
             lblTotalCost.Content = $"{totalCost:C}";
         }
         else
         {
             MessageBox.Show("Failed to load the invoice total cost");
         }
         dgInvoiceItems.ItemsSource = lineItems;
         btnEditInvoice.IsEnabled   = true;
         btnDeleteInvoice.IsEnabled = true;
         lblInvoiceNum.Content      = $"Invoice #{invoiceID}";
     }
     catch (Exception ex)
     {
         //This is the top level method so we want to handle the exception
         HandleError(MethodInfo.GetCurrentMethod().DeclaringType.Name,
                     MethodInfo.GetCurrentMethod().Name, ex.Message);
     }
 }