public void UnknownEventArgs()
{
var events = new EventHandlers<String>(this);
Boolean firstAdded = events.Add<AEventArgs>("v", AEventHandler);
Assert.IsTrue(firstAdded);
firstAdded = events.Add<AEventArgs>("v", AEventHandler);
Assert.IsFalse(firstAdded);
EventArgs e = new AEventArgs();
events.Raise("v", e);
Assert.IsTrue(((AEventArgs)e).Handled);
e = new BEventArgs();
events.Raise("v", e);
Assert.IsTrue(((BEventArgs)e).Handled);
}
private static void AEventHandler(Object sender, AEventArgs e)
{
e.Handled = true;
}