actionscript 3 - How can I load JSON data and use it as dataProvider for dataGroup? -

im experimenting how create custom item renderers in flex 4.6 , have data source in json format... im using following retrieve json data , works , can access data fine

myjsondata[i].id myjsondata[i].username   etc... 

but having problem understanding how go making data data type flex expects (arraylist, arraycollection?) dataprovider assigned datagroup.

public var loader:urlloader = new urlloader(); public var jsoncontent:urlloader; public var myjsondata:object; public var request:urlrequest;  public function init():void {  request = new urlrequest("url json data..."); loader.load(request); loader.addeventlistener(event.complete, jsonloaded); }   public function jsonloaded(event:event):void {  jsoncontent = urlloader(event.target);       myjsondata = json.parse(jsoncontent.data);    trace(myjsondata.length);                 } 

when try assign dataprovider this...

<s:datagroup dataprovider="myjsondata"> 

i error:

initializer 'dataprovider': values of type mx.collections.ilist cannot represented in text. 

i'd use same data access functionality , have data serve array can use dataprovider datagroup.

either give datagroup , id , assign dataprovider in as3 :

<s:datagroup id="mydatagroup">  //in as3  mydatagroup.dataprovider = new arraycollection(myjsondata); 

or can assign in mxml have wrap variable name in curly braces.

<s:datagroup dataprovider="{myjsondata}"> 

the reason why getting error because mxml treating myjsondata normal string.

you might still need put json array in arraycollection did first example.

hope helps.