Best practice to create typed collections/lists with internal or private Add, Remove functionality?

I frequently expose typed collections and lists. Often when exposing collections and lists I am not happy with the Add and Remove methods being public. In older versions of .Net I have implemented IE开发者_运维技巧numerable but this is a lot of work.

What are the better alternatives?

I have seen questions similar to this, but not specifically about the Add / Remove accessors

Thanks.

Does ReadOnlyCollection(T) sove this?

EDIT

Since you want...

...to be able to add to the collection / list internally or privately

you can have a private IList<T> you'll be adding objects to, and the ReadOnlyCollection<T> will be a wrapper around this list. Since it's a wrapper, all changes to an underlying list will be reflected in this read-only collection.

Expose interface:

IEnumerable<T>