/// <summary> /// Create Invoice /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void Btn_Create_Click(object sender, RoutedEventArgs e) { MI_Search.IsEnabled = false; MI_Close.IsEnabled = true; Btn_Create.IsEnabled = false; Btn_Edit.IsEnabled = false; Btn_Delete.IsEnabled = true; Btn_Edit.Visibility = Visibility.Hidden; Btn_Save.Visibility = Visibility.Visible; Btn_Delete.Visibility = Visibility.Hidden; Btn_Cancel.Visibility = Visibility.Visible; dp_InvoiceDate.IsEnabled = true; cb_InvoiceItems.IsEnabled = true; btn_AddToInvoice.IsEnabled = true; btn_RemoveFromInvoice.IsEnabled = true; tb_InvoiceItemsCost.Text = ""; DG_Items.ItemsSource = null; Main.Visibility = Visibility.Hidden; Invoice.Visibility = Visibility.Visible; Search.Visibility = Visibility.Hidden; Item.Visibility = Visibility.Hidden; cb_InvoiceItems.ItemsSource = mn.GetLineItems(); cb_InvoiceItems.SelectedIndex = -1; dp_InvoiceDate.IsEnabled = true; lbl_InvoiceNumber.Content = "Invoice #: TBD"; dp_InvoiceDate.SelectedDate = null; dp_InvoiceDate.DisplayDate = DateTime.Today; }