var a = new[] { 1, 2, 3, 4 }; var b = new[] { "abc", null, "def" }; var person = new[] { new { Name="MyName", code=new[]{12,34,54}, adress= new[]{"Osaka","umeda","home"}, }, new { Name="Ryo", code=new[]{12,34,54}, adress= new[]{"Tokyo","Katusika","shop"}, }, }; Console.WriteLine(person[1].adress[2]);