static void Main(string[] args) { using (var db = new ItemCatalog()) { var member = new Member { Name = "thinkAmi", Address = "SQLServerCompact4" }; db.Members.Add(member); var item = new Item { Name = "シナノドルチェ", Member = member }; db.Items.Add(item); int recordAffected = db.SaveChanges(); db.Items.Select(i => i).ToList().ForEach(row => Console.WriteLine("Id: {0}, Name: {1}, Member Name: {2}, Address: {3}", row.Id, row.Name, row.Member.Name, row.Member.Address)); Console.ReadKey(); } }