private void UserControl_Loaded(object sender, RoutedEventArgs e) { try { DtCustomer = flag.Fill_DataGrid_join("select CustomerName,ID_Customer from Customers where Exist = 'true'"); string[] names = { "ID_Product", "Name", "Price", "Unit", "Quantity_SaleAction", "EX_Date", "SalePrecentage", "TotalPrice" }; flag.Create_Columns(names, Dt); DelDt.Columns.Add("Del"); QuantityDt.Columns.Add("Quantity"); QuantityDt.Columns.Add("Unit"); flag.Fill_ComboBox(DtCustomer, cmbCustomer); string[] items = { "نقدي", "شيك", "بطاقة ائتمانية" }; cmbPayType.ItemsSource = items; cmbPayType.SelectedIndex = 0; cmbUnit.IsEnabled = Properties.Settings.Default.UnitEnabled; if (Properties.Settings.Default.UnitEnabled == false) { UnitColumn.Visibility = Visibility.Collapsed; } if (Properties.Settings.Default.EX_DateEnabled == false) { EX_DateColumn.Visibility = Visibility.Collapsed; } flag.Focus_txt(txtBarcode, txtSearchBill); usc = this; if (MainWindow.GetMainForm.Bill != "0") { txtSearchBill.Text = MainWindow.GetMainForm.Bill; } MainWindow.GetMainForm.Bill = "0"; } catch (Exception ex) { flag.Con.Close(); MessageBox.Show(ex.Message); } }