public FilmsEditingViewModel(Film film)
{
CurrentFilm = film;
if (film.Id != 0)
{
OriginalFilm = DbMethods.GetFilmFromDbById(film.Id);
NotifyOfPropertyChange(() => CanSelectSeason);
}
Seasons = film.Id != 0
? new BindableCollection <Season>(OriginalFilm.Seasons)
: new BindableCollection <Season>();
SelectedSeason = Seasons.FirstOrDefault();
NotifyOfPropertyChange(() => CreateFilmVisibility);
NotifyOfPropertyChange(() => SaveChangesVisibility);
}