How can I clear event subscriptions in C#?

Question

Take the following C# class:

c1 {
 event EventHandler someEvent;
}

If there are a lot of subscriptions to c1\'s someEven

Answer 1

This is my solution:

public class Foo : IDisposable
{
    private event EventHandler _statusChanged;
    public event EventHandler StatusChanged
    {
        add
        {
            _statusChanged += value;
        }
        remove
        {
            _statusChanged -= value;
        }
    }

    public void Dispose()
    {
        _statusChanged = null;
    }
}

You need to call Dispose() or use using(new Foo()){/*...*/} pattern to unsubscribe all members of invocation list.