private void btnConfirmReservationsToBookings_Click(object sender, RoutedEventArgs e)
{
if (cbxAdmin.SelectedItem == null)
{
}
else if (dgReservationsAdmin.SelectedItem == null)
{
}
else
{
bookingHandler.AddBookingsToDB(dgReservationsAdmin.SelectedItem as Reservation, cbxAdmin.SelectedItem as Admin);
dgBookingOverviewAdmin.ItemsSource = bookingHandler.GetAllBookings();
}
}