How do I get access to an AdvancedDataGridRendererProvider?

Question

In the snippet of the following code:
<mx:rendererProviders>
<mx:AdvancedDataGridRendererProvider depth="2"
column="{protocolID}" columnSpan="1"
renderer="ProtocolComboBox"/>
</mx:rendererProviders>
Can someone tell me how to get access to the ProtocolComboBox
renderer? I can't find an example anywhere.

Answer 1

Okay I think I got this. Part of the solution came from here:
http://www.cflex.net/showfiledetails.cfm?ChannelID=1&Object=File&objectID=767
Here is the code for the renderer:
package com.moveit
import flash.events.*;
import mx.controls.ComboBox;
import mx.events.*;
public class PlatformComboBoxRenderer extends ComboBox
import mx.collections.ArrayCollection;
import
mx.controls.advancedDataGridClasses.AdvancedDataGridListData;
private var _oItem:String;
private var myARR:Array = [ "linux", "solaris", "aix" ];
private var myAC:ArrayCollection = new ArrayCollection(
myARR );
public function PlatformComboBoxRenderer()
super();
this.visible = false;
this.enabled = true;
this.editable= false;
this.dataProvider = myAC;
this.selectedIndex = 0;
this.addEventListener(ListEvent.CHANGE, onChangeCBOSelection
public function onChangeCBOSelection( oEvent:Event ):void
_oItem = oEvent.target.selectedItem;
this.dispatchEvent( new PlatformComboBoxEvent(
PlatformComboBoxEvent.PLATFORM_COMPLETE, true, false,
this.selectedItem.toString() ) );
override public function set data(value:Object):void
if( value != null )
super.data = value;
_oItem = value.platform;
invalidateProperties();
override protected function commitProperties():void
super.commitProperties();
if( _oItem )
setSelectedValue();
private function setSelectedValue():void
this.selectedItem = _oItem;
<mx:AdvancedDataGrid xmlns:mx="
http://www.adobe.com/2006/mxml"
selectionMode="multipleRows" enabled="true"
dataProvider="{myTransferInfoGroupColl}">
<mx:columns>
<mx:AdvancedDataGridColumn headerText="ClientName"
width="110" editable="false" dataField="name"/>
<mx:AdvancedDataGridColumn headerText="Client ID"
editable="false" dataField="client_id"/>
<mx:AdvancedDataGridColumn headerText="Transfer ID"
width="110" editable="false" dataField="transfer_id"/>
<mx:AdvancedDataGridColumn headerText="Transfer Name"
width="120" editable="false" dataField="transfer_name"/>
<mx:AdvancedDataGridColumn headerText="Endpoint"
dataField="endpoint"/>
<mx:AdvancedDataGridColumn headerText="Host"
dataField="host" />
<mx:AdvancedDataGridColumn headerText="User"
dataField="user" />
<mx:AdvancedDataGridColumn headerText="Login Pwd"
dataField="login_pwd"/>
<mx:AdvancedDataGridColumn headerText="Platform"
id="platformID" itemEditor="com.moveit.PlatformComboBoxRenderer"
visible="true" editable="false" rendererIsEditor="false"/>
<mx:AdvancedDataGridColumn headerText="Protocol"
id="protocolID" itemEditor="com.moveit.ProtocolComboBoxRenderer"
visible="true" editable="false" rendererIsEditor="false"/>
</mx:columns>
<mx:rendererProviders>
<mx:AdvancedDataGridRendererProvider depth="2"
column="{platformID}" columnSpan="1"
renderer="com.moveit.PlatformComboBoxRenderer"/>
<mx:AdvancedDataGridRendererProvider depth="2"
column="{protocolID}" columnSpan="1"
renderer="com.moveit.ProtocolComboBoxRenderer"/>
</mx:rendererProviders>
public function init():void
myTransferInfoHttp = new HTTPService();
// Insert your domain name
myTransferInfoHttp.url = "
http://freedom.dynalias.org/cgi-bin/SourceBasicTransferInfoDataGrid.cgi";
CursorManager.setBusyCursor();
myTransferInfoHttp.send();
myTransferInfoHttp.addEventListener(ResultEvent.RESULT,
resultTransferInfoHttpHandler);
myTransferInfoHttp.addEventListener(FaultEvent.FAULT,
faultTransferInfoHttpHandler);
this.addEventListener(
ProtocolComboBoxEvent.PROTOCOL_COMPLETE,
this.protocolComboBoxHandler );
this.addEventListener(
PlatformComboBoxEvent.PLATFORM_COMPLETE,
this.platformComboBoxHandler );
public function platformComboBoxHandler(
evt:PlatformComboBoxEvent ):void
var mySelection:String = evt.selection;
var i:int = this.selectedIndex;
var myIndex:int = this.selectedIndex - 1;
trace( "MasterTransferGrid.platformComboBoxHandler(): " +
mySelection );
var record:Array = this.masterGridAC.getItemAt( myIndex ) as
Array;
record["platform"] = evt.selection;
//myCursor.current.platform;
It is important to set the renderer and the visible
attributes as:
itemEditor="com.moveit.PlatformComboBoxRenderer"
visible="true"
and in the constructor:
this.visible = false;
this.enabled = true;
this.editable= false;
It seems to be important to store the values within the
renderer rather than relying on the super class values. Adding the
onChange handler and then invalidating the properties and then
committing them again on the override of the commitProperties().