look at this mx.events.CollectionEventKind
--- In flexcoders@yahoogroups.com, "Derrick Anderson"
<[EMAIL PROTECTED]> wrote:
>
> Hi, I'm using the Guasax framework in my application- and in my
model I am
> adding a collection change event listener, but it is never getting
fired-
> here is my code (is there something with adding event listeners in a
> constructor maybe??)
>
> *EmployeesModel.as*
> package com.winn.model
> {
> import com.winn.vo.EmployeeVO;
>
> import conf.Constants;
>
> import es.guasax.container.GuasaxContainer;
> import es.guasax.view.ViewLocator;
>
> import mx.collections.ArrayCollection;
> import mx.controls.Alert;
> import mx.events.CollectionEvent;
>
> public class EmployeesModel
> {
> private static var instance:EmployeesModel;
> public static function getInstance():EmployeesModel
> {
> if( instance==null ) instance = new EmployeesModel();
> return instance;
> }
>
> [Bindable] public var selectedEmployee:EmployeeVO;
> [Bindable] public var employeesList:ArrayCollection;
> [Bindable] public var employeeStatusList:ArrayCollection;
>
> public function EmployeesModel(){
> employeesList = new ArrayCollection();
> employeeStatusList = new ArrayCollection();
>
> *employeeStatusList.addEventListener (
> CollectionEvent.COLLECTION_CHANGE,employeeStatusListChange );*
> }
>
> * public function
> employeeStatusListChange(event:CollectionEvent):void
> {
> Alert.show('firing listener function');//never shows
> GuasaxContainer.getInstance().executeViewUpdate(
>
> [ViewLocator.getInstance().getViewObject(Constants.EMPLOYEES_VIEW)],
> 'setEmployeeTypes',[]);
> }*
> }
> }
>
> now here is where I load content into that arrayCollection and
expect to see
> my listener function fire off
>
> *EmployeeBO.as
> private var employeesModel:EmployeesModel =
EmployeesModel.getInstance();
> *public function getEmployeesAuxData():void
> {
> var params:Array = [];
>
> ServiceLocator.getInstance().executeService
("employeeCFC","getEmployeesAuxData",params,employeesAuxDataHandler,fa
ultHandler,this);
> }
>
> public function employeesAuxDataHandler(event:* =
null ):void
> {
> *employeesModel.employeeStatusList =
> event.result.EMPLOYEESTATUSES;//i assumed this would be enough to
trigger
> the collectionChange***
> //employeesModel.employeeStatusList.refresh
();*//thought this
> would make the collectionEvent fire, but didn't*
> employeesModel.employeeStatusList.dispatchEvent(new
> CollectionEvent(CollectionEvent.COLLECTION_CHANGE));*//then tried
to fire it
> manually, but my listener is still never registered*
> }
>
> can anybody see why it seems my event listener is never registered?
>
> thanks,
> d.
>
