Select data from Multidimensional List

Question

can somebody help me? How can I get List<Episode> from List<Show> where Episodes.Seen == false ?

public class Show
{
    public string Name { get; set; }
    public List<Episode> Episodes { get; set; }
}

public class Episode
{
    public string Name { get; set; }
    public Nullable<bool> Seen { get; set; }
}

Thank you very much for tour help.

Answer 1

使用简单的Linq语句。

var episodes = shows.SelectMany(s=>s.Episodes.Where(e=>e.Seen.HasValue && !e.Seen.Value));

Answer 2

You can do this using LINQ, like so:

using System.Linq;

IEnumerable<Episode> unseenEpisodes = (from show in shows
                        from episode in show.Episodes
                        where (episode.Seen.HasValue && episode.Seen.Value == false)
                        select episode);