Help with the flow of events!

I'm in trouble during the expedition and listening to events in my application, I can send events from an object that is not on the display list and have a display object to listening to this event?
I do the following, I have a DataGrid component listening to an event he is sent to a non-visual object. the event contains information on the new dataProvider for the DataGrid, here is the code:

With the DataGrid component
"" < mx:TitleWindow xmlns:mx = ' http://www.adobe.com/2006/mxml ' layout = "vertical" width = "550" height = "600".
showCloseButton = "true" closed = "PopUpManager.removePopUp (this)" >
< mx:Script >
<! [CDATA]
import com.legosoft.events.DataProviderChangeEvent;
Import mx.managers.PopUpManager;

public void manejaEvento(event:DataProviderChangeEvent):void
{
pickListResult.dataProvider = event.newDataProvider;
}

[]] >
< / mx:Script >

< mx:DataGrid id = "pickListResult" width = "100%" height = "50%".
creationComplete = "pickListResult.addEventListener ('newDataProvider', manejaEvento)" >
< / mx:DataGrid >
< / mx:TitleWindow >

Here is the class that dispatches the event

SerializableAttribute public class GetTiposFacultadesCommand extends EventDispatcher implements Command, responder
{
public void execute(event:CairngormEvent):void
{
var delegate: BusinessDelegate = new BusinessDelegate (this);
delegate.getTiposFacultades ();
}

public void onResult(event:*_=_null):void
{
var _dataModelEvent:DataProviderChangeEvent = new DataProviderChangeEvent ('newDataProvider', false, false);
_dataModelEvent.newDataProvider = event.result.toArray ();
dispatchEvent (_dataModelEvent);
}

public void onFault(event:*_=_null):void
{
}
}

The thing is that the DataGrid never receives the event, I have no idea why it doesn't work. Can someone help me?

The point is that I don't want to pass the instance of the GetTiposFacultadesCommand to intercept the event. The point is to send an event anywhere and be able to catch anywhere in the application.
I found a solution to this, I have created my own EventDispatcher object as a singleton in the application, whenever I want to send an event and be able to catch him anywhere, I get the instance of this object and send the event, anywhere I want to catch it I get the instance of this object and have to listen to it, in other words, I coded the EventDispatcher object is a generic object that will send and receive events allowing others to get this instance and do something for the event.
This object has a getInstance() method that returns the instance of this object, don't forget that it is a singleton, there is that only one instance of it in the whole application, any object can obtain this instance and send/receive an event.

Tags: Flex

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