/// <summary>
 /// ON THE LIST VIEW DOUBLE CLICK OPEN THE FORM TO FINALIZE THE SELECTED RENTAL
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void LvRentalList_MouseDoubleClick(object sender, MouseButtonEventArgs e)
 {
     if (lvRentalList.SelectedItem != null)
     {
         Form_Rental form_Rental = new Form_Rental((Rental)lvRentalList.SelectedItem);
         form_Rental.ShowDialog();
         UpdateList();
     }
 }
 /// <summary>
 /// ON THE LIST VIEW DOUBLE CLICK OPEN THE FORM TO CREATE A NEW RENTAL
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void LvRentVehicleList_MouseDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
 {
     if (lvRentVehicleList.SelectedItem != null)
     {
         Vehicle     v           = (Vehicle)lvRentVehicleList.SelectedItem;
         Form_Rental form_Rental = new Form_Rental(v.Id, v.vehicleDescription, v.OdometerReading);
         form_Rental.ShowDialog();
         UpdateList();
     }
 }