//Удалить поставщика private void bt_Delete_Supplier_Click(object sender, RoutedEventArgs e) { if (tb_Surname_of_Supplier.Text.ToString() == "" | tb_Name_of_Supplier.Text.ToString() == "" | tb_Middle_Name_of_Supplier.Text.ToString() == "" | tb_Sires_Document.Text.ToString() == "" | tb_Number_Document.Text.ToString() == "") { MessageBox.Show("Данные не выбраны!" + "\n Повторите попытку!", "Сервис+", MessageBoxButton.OK, MessageBoxImage.Warning); } else { DataRowView ID = (DataRowView)dgSupplier.SelectedItems[0]; procedures.Supplier_Delete(Convert.ToInt32(ID["ID_Supplier"])); dgFill(QR); } }