Is calling an extension method on a “null” reference (i.e. event with no subscribers) evil?

Question

Evil or not evil?

public static void Raise(this EventHandler handler, object sender, EventArgs args)
{
   if (handler != null)
   {
      handler(sender, arg         


        

Answer 1

I wouldn't say it's evil, but I'm interested in how your extension method fits in with the

protected virtual OnSomeEvent(EventArgs e){ }

pattern and how it handles extensibility via inheritance. Does it presume all subclasses will handle the event instead of override a method?