Question

I have two entities that are something like that:

public class Movie
{
    public int MovieID { get; set; }

    public string Title { get; set; }

    public List<Director> Directors { get; set; };

    public int Year { get; set; }
}

public class Director
{
    public int DirectorID { get; set; }

    public string Name { get; set; }

    public List<Movie> Movies { get; set; }
}

Let’s say I want to order a list of Movies by the name of the Director:

Movies.OrderBy (??? => ???)

How can I do that?

Thanks in advance.

Answer 1

var orderedMovies =
    movies.OrderBy(movie => 
                    String.Join(",", movie.Directors
                                             .OrderBy(dir => dir.Name)
                                             .Select(dir => dir.Name)
                    )
    );