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.