private void cmbBoxCustomers_SelectedIndexChanged(object sender, EventArgs e)
{
if (cmbBoxCustomers.Items.Count == 0)
{
return;
}
List <Reservation> reservations = reservationsService.getByCustomer((Customer)cmbBoxCustomers.SelectedItem);
reservationsListView.Items.Clear();
foreach (Reservation reservation in reservations)
{
reservationsListView.Items.Add(new ListViewItem()
{
Text = reservation.ToString(),
Tag = reservation
});
}
}