Need help understand MVC implementation within Actionscript 3 AS3, please - actionscript-3

Question

I am learning MVC implementation with ActionScript 3.0. So far, I have done alright but have couple of questions that can make this learning process very pleasant for me. I would highly appreciate your help and wisdom.
Let me explain how I am implementing a simple MVC implementation:
My Flash Movie is called FusionMVC. I have all the MVC files within the same package like this:
DataModel
DataControl
DataView
Application Facade
Here are my question:
As I understand it correctly, whenever I need to place a display object on the main stage, I declare or implement that display object in DataView class, am I right?
I have a symbol/display object called "Box" in the main library. I add this symbol to the stage by instantiating it within DataView class which I am able to see at runtime. Now if I need to add an EventListener called "ClickHandler" to this object:
Where do I declare this "ClickHandler" event, please? I am currently declaring it in the DataModel Class.
What I am confused about is to where to declare the EventHandler Methods. DataModel, or DataControl?
Thank you for your help. Here is the entire code:
//DATAMODEL
package
{
import flash.events.*;
import flash.errors.*;
public class DataModel extends EventDispatcher
{
public static const UPDATE:String = "modelUpdaed";
private var _txt:String;
public function DataModel()
{
}
public function get Text():String
{
return _txt;
}
public function set Text(p:String):void
{
_txt = p;
notifyObserver();
trace("MODEL HAS BEEN CHANGED");
}
public function notifyObserver():void
{
dispatchEvent(new Event(DataModel.UPDATE));
}
public function sayHello(e:Event):void
{
trace("HEY HELLO");
}
}
}
//DATACONTROL
package
{
import flash.display.*;
import flash.events.*;
import flash.errors.*;
public class DataControl
{
private var _model:DataModel;
public function DataControl(m:DataModel)
{
_model = m;
}
}
}
//DATAVIEW
package
{
import flash.display.*;
import flash.events.*;
import flash.errors.*;
public class DataView extends Sprite
{
private var _model:DataModel;
private var _control:DataControl;
public var b:Box;
public function DataView(m:DataModel, c:DataControl)
{
_model = m;
_control = c;
addBox();
}
public function addBox():void
{
b = new Box();
b.x = b.y = 150;
//b.addEventListener(MouseEvent.CLICK, vHandler);
addChild(b);
}
}
}
//APPLICATION FACADE
package
{
import flash.display.*;
import flash.events.*;
import flash.errors.*;
public class Main extends Sprite
{
private var _model:DataModel;
private var _control:DataControl;
private var _view:DataView;
public function Main()
{
_model = new DataModel();
_control = new DataControl(_model);
_view = new DataView(_model, _control);
addChild(_view);
}
}
}

Answer 1

You are correct - display objects should handle events from their own children:
public function addBox():void
{
b = new Box();
b.x = b.y = 150;
b.addEventListener(MouseEvent.CLICK, boxClickHandler);
addChild(b);
}
Handle the event in the view:
private function boxClickHandler(event:MouseEvent)
{
_control.sayHello();
}
And then you just need to add to your controller the method to change the model:
public class DataControl
{
....
public function sayHello():void
{
_model.sayHello();
}