AS3 Instance Name of a custom class - actionscript-3

Question

I'm trying to get the instance name from a dropTarget of an object.
import flash.display.Sprite;
import flash.events.MouseEvent;
import com.components.DragDropBucket;
var circle:Sprite = new Sprite();
circle.graphics.beginFill(0xFFCC00);
circle.graphics.drawCircle(0, 0, 40);
var target:Array = new Array();
target[0] = new Sprite();
target[0].graphics.beginFill(0xCCFF00);
target[0].graphics.drawRect(0, 0, 100, 100);
target[0].name = "target1";
target[1] = new Sprite();
target[1].graphics.beginFill(0xCCFF00);
target[1].graphics.drawRect(0, 200, 100, 100);
target[1].name = "target2";
var testv:DragDropBucket = new DragDropBucket("test", 500, 500, 175, 40,false);
testv.name ="test2";
var test:DragDropBucket = new DragDropBucket("test", 0, 0, 175, 40,true);
addChild(target[0]);
addChild(target[1]);
addChild(circle);
addChild(testv);
addChild(test);
circle.addEventListener(MouseEvent.MOUSE_DOWN, mouseDown)
function mouseDown(event:MouseEvent):void {
circle.startDrag();
}
circle.addEventListener(MouseEvent.MOUSE_UP, mouseReleased);
function mouseReleased(event:MouseEvent):void {
circle.stopDrag();
trace(circle.dropTarget.name);
}
DragDropBucket is a custom class that extends Sprite Class.
So when I execute this code, when I drop the circle to target[0] or target[0] it successfully output "target1" and "target2".
Meanwhile when im drop the circle to testv object, the program output its name as instance#
Yet when I execute this code
trace(testv.name);
It prints "test2" well, no instance# or anything.
I'm not understand what is happening here, since DragDropBucket Class only extending the Sprite class and have nothing fancy. Maybe someone here can enlighten me, Thanks.

Answer 1

Your DragDropBucket class is not different of a library class. It's the same logic. There's an object contained in 'testv', your instance of DragDropBucket class, that is being detected as dropTarget.
function mouseReleased(event:MouseEvent):void {
circle.stopDrag();
trace(circle.dropTarget.name, circle.dropTarget.parent.name);
// output : instance1, test2
}
If 'test2' is not the parent of 'instance1', that's its parent.parent, or more.