--- In [email protected], "netdeep" <[EMAIL PROTECTED]> wrote:
>
> Thanks for the reply Todd. What about processing the event
though? For example if I
> have:
>
> foo.addEventListener(MouseEvent.MOUSE_DOWN, processResult);
>
> But I want to define processResult so that I can pass it a number
or an object, how do I
> use Custom events? The even I'm want to listen for is the moue
down event. When I
> define this listener, I know the value I want to associate with
that event. Later on, I won't
> know it so that when processResult gets called, it needs that extra
parameter to work. I'm
> a bit confused about how to use the custom event there, since I
won't be the one
> dispatching it.
OK, say that whatever the mouse is down on is a child of an
itemRenderer that is representing an XML data source, and you want to
get the node index of the XML node that is being represented.
private function myMouseDownListener(e:event):void{
//assume for simplicity we know what was clicked
//is always going to be a direct child of the renderer
var parent:* = e.target.parent;
var d:XML = parent.data;
var nodeNum:int = d.childIndex();
}
Depending on what you are trying to do, you can usually extrapolate
from the target of the event to what you need to know using the
parent or the owner chain.
However, if you really feel the need to go with custom events, this
is a good article I have found helpful:
http://www.adobe.com/devnet/flex/articles/graduating_pt2.html
HTH;
Amy
