Re: [flexcoders] Event broadcasters and listeners with cellRenderers

Tue, 28 Mar 2006 05:33:00 -0800

Hi,
 
On your cell render you can use these properties.
 
  public var listOwner:mx.controls.List;
  private var getCellIndex:Function;
  private var getDataLabel:Function;
 
 
  So instead of using parent use listOwner.parent, that should give you access to your button. Another aproach is to dispatch the button event into the TileList and then on your cellrender listen to it using listOwner.addEventListener ("myEvent"). Let me know if this was of any help.
 
 
Omar Ramos


 
On 3/28/06, nahruka <[EMAIL PROTECTED]> wrote:
Hi all,

I'm new at Flex and need some help about event handling among
different Flex components. I have a custom TitleWindow with a Button.
I want another custom component (used as a cell renderer in this
TitleWindow) to listen to this button to be clicked and then do
something.

Here is my TitleWindow WActes.mxml:

<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow  xmlns:mx=" http://www.macromedia.com/2003/mxml"
      xmlns="*" xmlns:ns1="Components.*" creationComplete="doInit()"
      title="This is my popup" closeButton="true"  
        click="this.deletePopUp()">
   
    <mx:Metadata>
        [Event("myEvent")]
    </mx:Metadata>

    <mx:Script><![CDATA[
       function myButtonClick() {
          dispatchEvent({type:"myEvent"});
       }
    ]]></mx:Script>


    <mx:DataGrid id="dgAlu" dataProvider="{myArr}" width="100%" 
        height="100%" editable="true"
      variableRowHeight="true" wordWrap="true"">
    <mx:columns>
    <mx:Array>
    <mx:DataGridColumn headerText="Nom" columnName="nom"
editable="false" width="80" wordWrap="true"></mx:DataGridColumn>
    <mx:DataGridColumn headerText="Qualificacio" editable="false"
cellRenderer=" Components.HBoxQualificacio"></mx:DataGridColumn>
    </mx:Array>
    </mx:columns>
    </mx:DataGrid>

    <mx:ControlBar>
      <mx:Button label="Close" click="deletePopUp()"/>
      <mx:Button id="myButton" label="Click here" 
          click="myButtonClick()"></mx:Button>
    </mx:ControlBar>
     

</mx:TitleWindow>



And here is my own cell renderer, HBoxQualificacio.mxml:

<?xml version="1.0" encoding="utf-8"?>
<mx:HBox xmlns:mx=" http://www.macromedia.com/2003/mxml"
initialize="inici()" hScrollPolicy="off">

  <mx:Script><![CDATA[

    function inici() {
      var listenerObject = new Object();
      listenerObject.myEvent = function(event) {
      trace("myEvent catched"); //This is never printed!!! :-(
      }
      parent.myButton.addEventListener("myEvent", listenerObject);
    }     
  ]]></mx:Script>

  <!-- Several Flex components go here -->

</mx:HBox>



Please I do need some help! Thanks!





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