Make list immutable [duplicate]

Question

This question already has answers here:

Closed 8 years ago.

Possible Duplicate:
Immutable List in C#

Is it possible to make a list immutable

Answer 1

List<T>.AsReadOnly() returns a readonly wrapper, so that you can't add/remove/replace elements.

To be truly immutable, the type T must be an immutable Type.

Answer 2

You can use ReadOnlyCollection<T> instead.