private void Updatebtn_Click(object sender, RoutedEventArgs e)
 {
     if (DataGridCars.SelectedItem == null)
     {
         MessageBox.Show("Выберите строку для изменения!", "", MessageBoxButton.OK);
     }
     else
     {
         int id = (DataGridCars.SelectedItem as Product).ID_Product;
         UpdateCarsWindow updateCarsWindow = new UpdateCarsWindow(id);
         updateCarsWindow.ShowDialog();
     }
 }
        private async void ItemMenu_Click(object sender, RoutedEventArgs e)
        {
            MenuItem      menu    = sender as MenuItem;
            CarApiService service = new CarApiService();
            var           list    = await service.GetCarForUpdateAsync(menu.TabIndex);

            UpdateCarsWindow window = new UpdateCarsWindow(list);

            window.ShowDialog();
            CarApiService serviceCars = new CarApiService();
            var           listCars    = await serviceCars.GetCarsAsync();

            CarVM.Clear();
            CarVM.AddRange(listCars);
            FillCarsWP();
        }