C# 2.0 has a neat feature called anonymous functions. This is intended to be used mostly with events:
Button.Click += delegate(System.Object o, System.EventArgs e)
{ System.Windows.Forms.MessageBox.Show("Click!"); };
Now, suppose that Button is a static member, then adding delegates to it would count as unmanaged resources. Normally, I would have to deregister the handler before regestring it again. This is a pretty common use case for GUI programming.
What are the guidelines with anonymous functions? Does the framework deregrister it automatically? If so, when?