Garbage collection when using anonymous delegates for event handling

Question

UPDATE

I have combined various answers from here into a \'definitive\' answer on a new question.

Original question

Answer 1

If you retain a reference to the anonymous delegate and then remove it when the controls are removed from the form that should allow both the controls and the anonymous delegates to be garbage collected.

So something like this:

public static class Linker
{

    //(Non-lambda version, I'm not comfortable with lambdas:)
    public static EventHandler> Link(Publisher publisher, Control subscriber)
    {
         EventHandler> handler = delegate(object sender, ValueEventArgs e)
             {
                  subscriber.Enabled = e.Value;
             };
         publisher.EnabledChanged += handler;
         return handler;
    }

    public static void UnLink(Publisher publisher, EventHandler> handler)
    {
        publisher.EnabledChanged -= handler;
    }

}

See Unsubscribe anonymous method in C# for an example of removing delegates.