Anonymous Type, Enumerator and Lambda expression

Question

With :

    var Foo = new[]{ new {Something = 321}};

Why can I do (compile) :

    Console.WriteLine( Foo[0].Something );

but not :

     Foo.ForEach(x => Console.WriteLine(x.Something));

Answer 1

Because Array only have a static ForEach method:

var Foo = new[] { new { Something = 321 } };
Array.ForEach(Foo, x => Console.WriteLine(x.Something));

compiles and works.

Answer 2

try

 Foo.ToList().ForEach(x => Console.WriteLine(x.Something));

instead, as the ForEach extension is only available for lists

EDIT: tested and works.

EDIT2: A few workarounds to make an "anonymous list"

This SO post
This blog post
Another blog post