private void OnAddReservationCommand()
{
ReservationWindow window = new ReservationWindow();
bool?result = window.ShowDialog();
if (result == true)
{
Reservation reservation = (window.DataContext as ReservationWindowViewModel).Reservation;
if (reservation != null)
{
int maxId = 0;
if (ReservationData.Count != 0)
{
maxId = ReservationData.Select(x => x.Id).Max();
}
reservation.Id = maxId + 1;
ReservationData.Add(reservation);
}
}
}
