[flexcoders] Re: Custom Events
I have listed my setup below.
Results:
I have confirmed that the initialize event on the parent object adds
the event.
Clicking the item on the grid, fires the internal handler and I have
confirmed that it dispatches the custom event. However, the parent
event handler for the custom event does not fire.
My call to the custom component looks like this:
pdb:CategoriesPnl id=CategoriesPnl
initialize=CategoriesPnl.CtgsPnlDG.addEventListener('dgItemClick',
CtgsPnlDGItemClick);/pdb:CategoriesPnl
The eventhandler in the parent looks like this:
private function CtgsPnlDGItemClick(event:ListEvent):void
{Alert.show(event.eventPhase+'_external');}
The custom component looks like this:
mx:Panel xmlns:mx=http://www.adobe.com/2006/mxml;
label=Categories backgroundColor=#CC width=100%
height=100%
mx:Script
![CDATA[
import flash.events.Event;
import mx.collections.ArrayCollection;
import mx.controls.DataGrid;
import mx.controls.Alert;
import mx.events.*
import mx.events.ListEvent
[Bindable] public var CtgsPnlAC:ArrayCollection = new
ArrayCollection;
private function CtgsPnlDGItemClick(event:ListEvent):void
{
Alert.show('internal');
Alert.show('dispatch result'+dispatchEvent(new Event
(dgItemClick,true)).toString());
}
private function CtgsPnlDGRefresh():void
{
CtgsPnlWebSvcVO.GetAllCategories();
}
]]
/mx:Script
mx:Metadata
[Event(name=dgItemClick, type=mx.events.ListEvent.ITEM_CLICK)]
/mx:Metadata
mx:WebService id=CtgsPnlWebSvcVO
wsdl=http://support07:57773/csp/prtest/pdb.sl.WebServiceVO.cls?
WSDL=1
mx:operation name=GetAllCategories resultFormat=object
fault=mx.controls.Alert.show(event.fault.faultString)
result=CtgsPnlAC = event.result.Categories;
/mx:operation
/mx:WebService
mx:DataGrid id=CtgsPnlDG height=100%
dataProvider={CtgsPnlAC}
initialize=CtgsPnlDGRefresh()
itemClick=CtgsPnlDGItemClick(event)
mx:columns
mx:DataGridColumn headerText=ID dataField=CtgId/
mx:DataGridColumn headerText=Key dataField=CtgKey/
/mx:columns
/mx:DataGrid
/mx:Panel
--- In flexcoders@yahoogroups.com, Tracy Spratt [EMAIL PROTECTED] wrote:
...firing an handler off the itemSelect event and then in the
handler
creating a new event and dispatching that to an external handler
That is how I do it. What didn't work?
Tracy
RE: [flexcoders] Re: Custom Events
Looks ok to me.
The event is bubbling, so try listening for the event at the Main app
level:
this.addEventListener('dgItemClick', CtgsPnlDGItemClick)
Tracy
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of rss181919
Sent: Wednesday, August 06, 2008 3:38 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Re: Custom Events
I have listed my setup below.
Results:
I have confirmed that the initialize event on the parent object adds
the event.
Clicking the item on the grid, fires the internal handler and I have
confirmed that it dispatches the custom event. However, the parent
event handler for the custom event does not fire.
My call to the custom component looks like this:
pdb:CategoriesPnl id=CategoriesPnl
initialize=CategoriesPnl.CtgsPnlDG.addEventListener('dgItemClick',
CtgsPnlDGItemClick);/pdb:CategoriesPnl
The eventhandler in the parent looks like this:
private function CtgsPnlDGItemClick(event:ListEvent):void
{Alert.show(event.eventPhase+'_external');}
The custom component looks like this:
mx:Panel xmlns:mx=http://www.adobe.com/2006/mxml
http://www.adobe.com/2006/mxml
label=Categories backgroundColor=#CC width=100%
height=100%
mx:Script
![CDATA[
import flash.events.Event;
import mx.collections.ArrayCollection;
import mx.controls.DataGrid;
import mx.controls.Alert;
import mx.events.*
import mx.events.ListEvent
[Bindable] public var CtgsPnlAC:ArrayCollection = new
ArrayCollection;
private function CtgsPnlDGItemClick(event:ListEvent):void
{
Alert.show('internal');
Alert.show('dispatch result'+dispatchEvent(new Event
(dgItemClick,true)).toString());
}
private function CtgsPnlDGRefresh():void
{
CtgsPnlWebSvcVO.GetAllCategories();
}
]]
/mx:Script
mx:Metadata
[Event(name=dgItemClick, type=mx.events.ListEvent.ITEM_CLICK)]
/mx:Metadata
mx:WebService id=CtgsPnlWebSvcVO
wsdl=http://support07:57773/csp/prtest/pdb.sl.WebServiceVO.cls?
http://support07:57773/csp/prtest/pdb.sl.WebServiceVO.cls?
WSDL=1
mx:operation name=GetAllCategories resultFormat=object
fault=mx.controls.Alert.show(event.fault.faultString)
result=CtgsPnlAC = event.result.Categories;
/mx:operation
/mx:WebService
mx:DataGrid id=CtgsPnlDG height=100%
dataProvider={CtgsPnlAC}
initialize=CtgsPnlDGRefresh()
itemClick=CtgsPnlDGItemClick(event)
mx:columns
mx:DataGridColumn headerText=ID dataField=CtgId/
mx:DataGridColumn headerText=Key dataField=CtgKey/
/mx:columns
/mx:DataGrid
/mx:Panel
--- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
, Tracy Spratt [EMAIL PROTECTED] wrote:
...firing an handler off the itemSelect event and then in the
handler
creating a new event and dispatching that to an external handler
That is how I do it. What didn't work?
Tracy
[flexcoders] Re: Custom Events
I modified the call as follows:
pdb:CategoriesPnl id=CategoriesPnl initialize=CtgsPnlInit
(event);/pdb:CategoriesPnl
private function CtgsPnlInit(event:Event): void
{
this.addEventListener('dgItemClick', CtgsPnlDGItemClick)
Alert.show(this.hasEventListener(dgItemClick).toString());
}
Results:
1. On entering the custom panel at runtime, the alert return 'true'
indicating that the listener was added to 'this'.
2. On selectItem call, the alert message ' dispatch result: true' and
then the message 'internal' is displayed. However, the alert
message 'external' never displays (which should follow the 'internal'
message).
