static void Related()
{
var db = new MusicDbContext();
var results = db.Bands
.Include(b => b.Albums)
.ToListAsync().Result;
foreach (var band in results)
{
System.Console.WriteLine(band.Name);
foreach (var album in band.Albums)
{
System.Console.WriteLine(" " + album.Title);
}
System.Console.WriteLine();
}
}
static void Main(string[] args)
{
var db = new MusicDbContext();
var result = db.Bands
.Include(b => b.Albums)
.SingleAsync(b => b.Id == 2)
.Result;
result.Name = "Pearl Jam 2";
result.Albums.Add(new Album()
{
Title = "Vs.",
Year = 1993,
Style = MusicStyle.Grunge
});
db.SaveChanges();
}
static void Insert()
{
var db = new MusicDbContext();
var newBand = new Band();
newBand.Name = "Pearl Jam";
var newAlbum = new Album();
newAlbum.Title = "Ten";
newAlbum.Year = 1991;
newAlbum.Style = MusicStyle.Grunge;
newBand.Albums = new List <Album>();
newBand.Albums.Add(newAlbum);
db.Bands.Add(newBand);
db.SaveChanges();
System.Console.WriteLine("Presione cualquier tecla...");
Console.ReadLine();
}
