[flexcomponents] Extended Canvas with Event Listener of drag enter - n00b

[applecoremilo]

I'm trying to add an eventListener to my extended Canvas Class but 
seem to be having a slight problem.

I've created a loop which runs 16 times (in the main mxml component), 
it adds a new instance of the canvas to a container and sets an drag 
enter event listener for each one, however when i drag over any of 
teh canvas' only one the last one added reacts to the drag enter  - 
regardless of where i drag the object.

Am i going about this the wrong way?

any help would be appreciated..

heres some example code

for(var i = 0; i < 16;i++)
{
   var foo:extendedCanvasObj = new extendedCanvasObj();

   foo.setstyle.......

   foo.addEventListener(dragEvent.DRAG_ENTER,function
(event:DragEvent)  {change the canvas backgroundcolour };

container.addChild(foo);
}