コード例 #1
0
        static void TestManyToMany()
        {
            Console.WriteLine("Many to many association.");
            using (Model3Container context = new Model3Container())
            {
                Artist ar1 = new Artist()
                {
                    FirstName = "John",
                    LastName  = "Doe"
                };
                Artist ar2 = new Artist()
                {
                    FirstName = "Jane",
                    LastName  = "Doe"
                };
                Album al1 = new Album()
                {
                    AlbumName = "Sonata",
                    Artists   =
                    {
                        ar1, ar2
                    }
                };
                Album al2 = new Album()
                {
                    AlbumName = "Test",
                    Artists   =
                    {
                        ar1, ar2
                    }
                };
                ar1.Albums.Add(al1);
                ar1.Albums.Add(al2);
                ar2.Albums.Add(al1);
                ar2.Albums.Add(al2);
                context.Albums.Add(al1);
                context.Albums.Add(al2);
                context.Artists.Add(ar1);
                context.Artists.Add(ar2);
                context.SaveChanges();

                var items = context.Artists;
                foreach (var x in items)
                {
                    Console.WriteLine("Artist: {0}, {1}, {2}", x.ArtistId, x.FirstName, x.LastName);
                    foreach (var ox in x.Albums)
                    {
                        Console.WriteLine("\tOrders: {0}, {1}, {2}", ox.AlbumId, ox.AlbumName, ox.Artists);
                        foreach (var oy in ox.Artists)
                        {
                            Console.WriteLine("\tArtist: {0}, {1}, {2}", x.ArtistId, x.FirstName, x.LastName);
                        }
                    }
                }
            }
        }
コード例 #2
0
 public MusicService(Model3Container context)
 {
     this.context = context;
 }