static void Main(string[] args)
{
string[] artistNames = new string[] { "Rob Miles", "Freed Bloggs",
"The Bloggs Sisters", "Immy Brown" };
string[] titleNames = new string[] { "My Way", "Your Way", "His Way", "Her Way",
"Milky Way" };
List <Artist> artists = new List <Artist>();
List <MusicTrack> musicTracks = new List <MusicTrack>();
Random rand = new Random(1);
var artistCount = 1;
var trackCount = 1;
foreach (string artistName in artistNames)
{
Artist newArtist = new Artist {
Name = artistName, ID = artistCount++
};
artists.Add(newArtist);
foreach (string titleName in titleNames)
{
MusicTrack newTrack = new MusicTrack
{
Artist = newArtist,
Title = titleName,
Length = rand.Next(20, 600),
ID = trackCount++
};
musicTracks.Add(newTrack);
}
}
//Complex Anonymous Types
var artistSummary = MusicTracks.Join(
Artists,
track => track.Artist.ID,
artist => artist.ID,
(track, artist) =>
new
{
track = track,
artist = artist
}
)
.GroupBy(
temp0 => temp0.artist.Name,
temp0 => temp0.track
)
.Select(
artistTrackSummary =>
new
{
ID = artistTrackSummary.Key,
Length = artistTrackSummary.Sum(x => x.Length)
}
);
}
