How to make a reference type property “readonly”

Question

I have a class Bar with a private field containing the reference type Foo. I would like to expose Foo in a public property, but I do n

Answer 1

If you don't want anyone to mess with your state...don't expose it! As others have said, if something needs to view your internal state, provide an immutable representation of it. Alternatively, get clients to tell you to do something (Google for "tell don't ask"), instead of doing it themselves.