private void ServInApart(object sender, RoutedEventArgs e)
 {
     if (Hotel.IsApartament != null)
     {
         ServiceApart SA = new ServiceApart();
         SA.Show();
     }
 }
        private void ServInApart(object sender, RoutedEventArgs e)
        {
            ServiceApart SA = new ServiceApart();

            SA.Show();
        }