How to dispatch custom events from an item renderer used for Datagrid Column

Hi,
I am using an Item Renderer for a Data Grid Column and in that mxml, I am dispatching a custom event with data.
But the main mxml which has the DataGrid is not able to resolve the event. How can I solve this?
Thanks

Hi,
This is the constructor for Event.
public function Event(type:String, bubbles:Boolean = false, cancelable:Boolean = false)
When you created your custom event after extending from Event, for the parent container receives the event, the bubbles property must be set to true.
Please check if you have done so. That should solve the problem. Let me know if it doesn't.
Nishad

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Dispatch custom event from itemClick handler

hi,
I'm trying to dispatch a custom event from my itemClick handler.
So when I click on an item of my datagrid, I want to send a custom event.
private function dataGridItemClickHandler( event:ListEvent): void
dispatchEvent( new myEvent( myEvent.NEW, values[event.columnIndex]["name"]) );
<mx:DataGrid dataProvider="{values}" itemClick="dataGridItemClickHandler(event)">
</mx:DataGrid>
but this code doesn't work.
Can you help me
thanks
best regards

Please see that you override the function clone() and return the new function.If that is correct.you can call the super() method to initialize your base class.
If your custom event {myEvent} is in package say: CustomEvent,
1)import package CustomEvent.myEvent
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private function dataGridItemClickHandler( event:ListEvent): void
dispatchEvent( new myEvent( ' NEW ', values[event.columnIndex]["name"]) );
private funcation myEventListener(evt:myEvent):void
//Put your logic
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Hope this helps! Please excuse if anything is logically incorrect.Do point out.Thanks.

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HI everyone
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///////////////////////////////////PRELOADER
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Alex,
         Thank you very much for the fast answer, but I'm not an advanced programmer in Flex, so I would need a bit more help from you. I wouldlike you to tell me if it is possible to do what I want to do? and could you be more specific n the information you gave me please?
I think you mean something like this:
private function progreso(event:StyleEvent):void
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let me tell you that the method that I posted on the last message was a part of this class:
     public class PreloaderDisplayBase extends Sprite implements IPreloaderDisplay
PreloaderDisplayBase is my Preloader.
I hope you can help me.
Thanks Again
Sebastián Toro O

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I solved.
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I am having a data grid with multiple check boxes for this i am using CheckCellRendererEdit as itemrenderer.When i am making a change in datagrid checkbox its not updating
The problems are
1. when i select a checkbox in second row it gets selected in another row after saving
2.when i choose one checkbox in a row it gets afftected in many row can i get a solution for this Below given is the code i am using
CheckCellRendererEdit.as
package
    import mx.controls.*;
import mx.core.*;
import mx.controls.dataGridClasses.DataGridListData;
import flash.events.Event;
import flash.events.MouseEvent;
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// Define the constructor and set properties.
public function CheckCellRendererEdit() {
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override protected function clickHandler(event:MouseEvent):void
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Currently i am migrating from flex1.5 to flex2 Just i am using this itemrenderer(checkbox) for DataGrid can i have some ideas for datagrid
The DataGrid i am using is
<mx:DataGrid id="screendg" ">
            <mx:columns>
              <mx:Array>
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                <mx:DataGridColumn headerText="cdata" dataField="cdata" itemRenderer="CheckCellRendererEdit" />
                <mx:DataGridColumn headerText="vdata" dataField="udata" itemRenderer="CheckCellRendererEdit" />
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            </mx:columns>
          </mx:DataGrid>
When i am selecting a checkbox in data grid the grid value is not getting changed

Dispatching an event from a command

Hi,
In one for my commands in the Cairngorm based application I'm working on I need to dispatch a event to amend the view. In my command I'm amending some value objects in a ArrayCollection, which is the data source for a List component in my view. Once I completed my changes to these value objects I'd like to dispatch a event to resort the ArrayCollection and update my view to the new order.
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Thanks
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Great question - I'm currently sorting out how to do this myself. I'm new to Cairngorm but have a decent amount of experience with Flex. Here are my thoughts:
Cairngorm promotes decoupling of the data model and front controller/commands from the view - which is appropriate for an MVC framework. Data binding supports this seperation (to an extent) and keeps the view up to date with the model in 'real time'. Data binding does not however provide an intuitive mechanism for reacting to cairngorm event results. So here a few solutions I've been tossing around:
1. Rely on Built in Flex events such as the datagrid's dataChange event to trigger a reaction.
2. Create view state variables in the model that, when changed through the front controller / commands, dispatch custom events from within their VO's / setters / ect.
3. Dispatch custom events directly from front controller / commands.
4. Create custom (or override existing) item renderers that self-transition / tween when changed as a result of data binding.
I'm sure there are other ways to do what we want, but I'm out of ideas. Which approach to take very well depends on how strongly you'd like to adhere to the MVC concept. Commands that dispatch generic events as their messages may or may not be acceptable to you - but they provide a straitforward way to trigger view related reactions without relying on data binding events. I'd be interested to know if Cairngorm 3 will address this challenge...
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Can you send custom events from one form to another?

I have a compli
cated application, where I about hundred inp
uts organized in several input forms. Some of the forms
require data which has been input in other forms. I have tried to
dispatch custom events from one form to another, but it dispatches the
whole form and I only need one or two items.
Ha anybody else come across such a problem?
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One way is to share data in a static singleton

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Try the following. On the first frame of the movieclip place
the following code.
// Event Routines //
var dispatchEvent:Function;
var addEventListener:Function;
var removeEventListener:Function;
mx.events.EventDispatcher.initialize(this);
Then on the "x" frame of the movieclip, place the following
code:
var evt:Object = new Object();
evt.type = "framereached"; // this can be whatever you wish
to listen for
evt.target = this;
dispatchEvent(evt);
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just as well if coded directly onto a frame. However, to make this
more versatile I would place it in a class with a public function,
for example, name throwEvent(). This public method would then
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How to Access Custom Event using AS3?

Hi All,
Maybe it's that its Monday morning and my brain is still foggy, but I can't seem to figure out how to set custom events using AS3.
I have a custom GridRow itemRenderer, and have declared the event using the appropriate metatags.
Then I create the GR item dynamically using AS3 instantiation, but the event is not available for selection in the intellisense drop-down.
Let's take the following as an example:
<?xml version="1.0" encoding="utf-8"?>
<mx:Grid
     xmlns:mx="http://www.adobe.com/2006/mxml"
     xmlns:renderers="com.brassworks.renderers.*"
     creationComplete="componentInit();"
>
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</mx:Grid>
Then the itemRenderer:
<?xml version="1.0" encoding="utf-8"?>
<GridRow
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     xmlns:classes="com.brassworks.components.classes.*"
     creationComplete="componentInit();"
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</GridRow>
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Thanks!
-Mike

Yes, I you need to do this via the addEventListener() method.
myRow.addEventListener( "myEvent", myHandler );
I hope that helps.
Ben Edwards

How to define custom event and how to trigger the defined event

hi,guys
hurry issue....................hope get help.
I am using oracle weblogic 10gr3 portal.and we choiced java portlet.as of now,we got some question about custom Event.hope you can give some idea....
thank you so much.
question detail:
1.for java portlet ,how to define custom event.
2.how to trigger this event.
3 about the data,may be sometime need to transit Biz data.
auctully,I just want to implements between two portlets communicate.
for example:
existing portletA,portletB.
portletA is a list,like:
A AA <button>
after I click this buttom,then portletB will be effect,it means they are interact with each other.
does anybody hit this issue before,if you solved pls share me .
thank you for you help....

Hello,
Please note that everything below applies to JSR168 portlets ONLY- JSR286 portlets and other portlet types handle events a little differently.
From inside your JSR168 portlet you can send an event during processAction or when receiving another event by using the PortletBackingContext object, such as:
import javax.portlet.ActionResponse;
import javax.portlet.ActionRequest;
import javax.servlet.http.HttpServletRequest;
import com.bea.netuix.servlets.controls.portlet.backing.PortletBackingContext;
public void processAction(ActionRequest actionRequest, ActionResponse actionResponse)
HttpServletRequest httpRequest = (HttpServletRequest) actionRequest.getAttribute("javax.servlet.request");
PortletBackingContext portletBackingContext = PortletBackingContext.getPortletBackingContext(httpRequest);
portletBackingContext.fireCustomEvent("customEvent", "This is a custom event");
To receive an event, in your .portlet file you just need to put in a "handleCustomEvent" tag specifying which method to call when the event is received, such as:
<?xml version="1.0" encoding="UTF-8"?>
<portal:root xmlns:netuix="http://www.bea.com/servers/netuix/xsd/controls/netuix/1.0.0"
xmlns:portal="http://www.bea.com/servers/netuix/xsd/portal/support/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.bea.com/servers/netuix/xsd/portal/support/1.0.0 portal-support-1_0_0.xsd">
<netuix:javaPortlet title="Listening Portlet" definitionLabel="yourPortletName">
<netuix:handleCustomEvent event="customEvent" eventLabel="customEvent" filterable="true" description="custom event handler">
<netuix:invokeJavaPortletMethod method="processCustomEvent"/>
</netuix:handleCustomEvent>
</netuix:javaPortlet>
</portal:root>
Then, in your receiving portlet the method "processCustomEvent" would receive the event, such as:
public void processCustomEvent(ActionRequest actionRequest, ActionResponse actionResponse, Event event)
The event payload can be any Serializable object you want, but for forward-compatibility with JSR286 it would be ideal if it had a valid JAXB binding.
Kevin

Dispatching Custom Events Help

Hello Everyone,
I am just learning how to handle custom events, and after spending couple of days tring to understand the process, I am unable to get it going. What I am trying to do is to write a Two Button (component/swf). So when I need to utilize this component in other projects, I can simply load the the swf and be able to fire the buttons.
I have two button objects on the stage, and I would like these two button object to fire custom events when the parent component is loaded as swf in other projects. Perhaps, I am going all wrong about what I am tring to accomplish here, I would highly appreciate your help.
After some research, I concluded that I will need to employ Custom Event(s) going for my component. I spent hours on google and have not been able to get it working.
Here is my code:
============================
CustomEvent Class
============================
package com.custom.apps
    import flash.events.Event;
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        public var arg:*;
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            return new CustomEvent(type, arg, bubbles, cancelable);
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============================
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============================
import com.custom.apps.*;
btn.addEventListener(MouseEvent.CLICK, clickHandler);
function clickHandler(e:MouseEvent):void
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function customHandler(e:CustomEvent):void
    trace(e.target);
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Kalisto,
I appreciate your help. Do I have this right? So I can build a navigation component with two links:
LINK1 | LINK2
then I load this navigation component/swf into another project and when I click on either of the links, it will dispatch a CUSTOM EVENT and when the event is dispatched, lets say I have a function (sayHello) listening for that particular event and when the CUSTOM EVENT is dispatched when one of the navigation component's link is clicked the (sayHello()) function would fire itself.
Can this be done? Am I on the right track?
I have been at it for couple of days now, I am able to dispatch the event but don't know how to have a function listen for the events. I would highly appreciate it if you can have look at my code.
Thanks a lot

How to get a value from one item into another

How can i get value from one item into another item.
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How can i do this?
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Hi
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Dear Ankit,
Once the pricing procedure is downloaded, please maintain the document pricing procedure at service contract header level, and maintain the customer pricing procedure at business partner sales area billing data.
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Hi,
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How to dispatch custom events from an item renderer used for Datagrid Column

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