[Gtk-sharp-list] Overriding or new handler

[Mike Kestner]

On Fri, 2006-03-10 at 18:48 +0100, Michael Gebhart wrote:

> To override the methods:
            
>     protected override bool OnButtonPressEvent(Gdk.EventButton evnt)

> Or adding a new handler:
> 
>     public MyWidget() 
>      { 
>             ButtonPressEvent += ButtonPressed; 
>      }
> 
> Is there any advantage, or disadvantage?

There is some overhead in signal emission. You are also relinquishing
some control over whether your users see events before your control is
updated.  There are no guarantees that your event handler will run first
even though it is added to the event before any user handlers.  That's
the nature of .Net events.

For those reasons it is probably best to override the VM instead of
connecting to the event.  Don't forget to chain to the base method where
appropriate.

-- 
Mike Kestner <mkestner at novell.com>