private void btnRentalDelete_Click(object sender, RoutedEventArgs e)
{
Button button = (Button)sender;
Rental rental = (Rental)button.DataContext;
if (MessageBox.Show("Deze verhuur annuleren?", "Verhuur verwijderen", MessageBoxButton.YesNo, MessageBoxImage.Question, MessageBoxResult.No) == MessageBoxResult.Yes)
{
rentals.DeleteRental(rental);
lstResidences_SelectionChanged(null, null);
}
}
