Is there idiomatic C# equivalent to C's comma operator?

Question

I\'m using some functional stuff in C# and keep getting stuck on the fact that List.Add doesn\'t return the updated list.

In general, I\'d like to call

Answer 1

You can do almost exactly the first example naturally using code blocks in C# 3.0.

((accum, data) => { accum.Add(data); return accum; })