http://blogs.adobe.com/aharui/2007/03/thinking_about_item_renderers_1.html

The Sub-Object Item Renderer may be close to what you’re looking for. So check it out and hopefully you can find your answer.

As for label function, maybe this can help:
http://blog.flexexamples.com/2007/09/25/creating-a-simple-label-function-on-a-flex-combobox-control/

Anh Quy

private function sentimentRH(event:ResultEvent):void {
var data:Object = JSON.decode(event.result.toString())
myArray = new ArrayCollection(data.features);
}

The top level array is features, the nested array is products. dataField=”name” gives me features.name however I’m unable to get product.* into a column.

The dataGrid dataField is fine pulling fields out of the top level array but doesn’t understand features.product. Searching around I’ve found some clues to using labelFunction rather than dataField but I can’t find any detailed explanation of implementing it although I understand it to be “complex”… I’m fairly new to Flex/AS and totally stuck, any explanation/example would be much appreciated. There is one response above that makes sense but is apparently cutoff(?).

TIA/

Also can anyone shed light on how to receive the same as JSONObject or JSONArray in Java.

I am trying something like this in Java

@Path(“/datareceive”)
public class DataReceive {
@PUT
@Consumes(“application/json”)
public String putProduct(JSONObject jsonEntity) throws JSONException {
System.out.println(jsonEntity.length());
return “”;
}
}

The following is the error that I get when I try to send JSON Encoded data from Flex using HTTPService

Error #1065: Variable {“id”:”userCollection”,”users”:[{"name":"user0","password":"password0","login":true,"flags":[1,2,3,4,5,6],”role”:{“name”:”user”}},{“name”:”user1″,”password”:”password1″,”login”:false,”flags”:[1,2,3,4,5,6],”role”:{“name”:”user”}}],”userCount”:2,”extension”:null,”flags”:["a","b","c",false,1,5,77,null]} is not defined.

What could be the reason behind the issue?

Thanks
Krishnan

[Bindable]
public var teste:ArrayCollection = new ArrayCollection([{"title":"Matthews","src":"Matt"},{"title":"Matthews2","src":"Matt2"}]);

define function to encode:
public function JSONfunc(entrada:Object):void
{
var arr1:Array = new Array(entrada);
var arr3:ArrayCollection = new ArrayCollection(arr1);
var js:JSONEncoder = new SONEncoder(arr3[0].source);
texto = JSONEncoder(js).getString();
}

call function:

private function onJSONLoad(event:ResultEvent):void
{
var params:Object = {};
params["callCount"] = “1″;
params["page"] = “/index.jsp”;
params["c0-scriptName"] = “Suggest”;
params["c0-methodName"] = “search”;
params["c0-id"] = “0″;

params["c0-param0"] = “string:search-term”;
params["c0-param1"] = “string:goodman group%7C”;
params["c0-param2"] = “number:10″;
params["batchId"] = “0″;
params["scriptSessionId"] = “Nathan-DeskTop”;

trace(params);

trace(“service call begin”);

service.send(params);

trace(“service call end”);
}

The above Action script POSTs data to a Servlet below well :

It fails to post data to a JSON/DWR based service below :

The response from the DWR service is below :
//#DWR-REPLY

if (window.dwr) dwr.engine._remoteHandleBatchException({ name:’org.directwebremoting.extend.ServerException’, message:’The specified call count is not a number: null’ });

else if (window.parent.dwr) window.parent.dwr.engine._remoteHandleBatchException({ name:’org.directwebremoting.extend.ServerException’, message:’The specified call count is not a number: null’ });

Based on the error ‘The specified call count is not a number: null’ – I guess the params["callCount"] = “1″; is not posted to the server. Probably nothing gets posted to the server in the JSON format.

I tried these below, no luck

//service.send( JSON.encode(params) );

//var encoder:JSONEncoder = new JSONEncoder(params);

//service.send( encoder.getString() );

Wondering how to post JSON data, could you please help ?

I am getting the following error when tried to use the code provided in this blog. I appreciate any help is provided to me to sort out this issue.

Error: Unexpected o encountered
at com.adobe.serialization.json::JSONTokenizer/parseError()[C:\Development\ContractProjects\Adobe\as3corelib\src\com\adobe\serialization\json\JSONTokenizer.as:546]
at com.adobe.serialization.json::JSONTokenizer/getNextToken()[C:\Development\ContractProjects\Adobe\as3corelib\src\com\adobe\serialization\json\JSONTokenizer.as:171]
at com.adobe.serialization.json::JSONDecoder/nextToken()[C:\Development\ContractProjects\Adobe\as3corelib\src\com\adobe\serialization\json\JSONDecoder.as:86]
at com.adobe.serialization.json::JSONDecoder/parseObject()[C:\Development\ContractProjects\Adobe\as3corelib\src\com\adobe\serialization\json\JSONDecoder.as:142]
at com.adobe.serialization.json::JSONDecoder/parseValue()[C:\Development\ContractProjects\Adobe\as3corelib\src\com\adobe\serialization\json\JSONDecoder.as:199]
at com.adobe.serialization.json::JSONDecoder()[C:\Development\ContractProjects\Adobe\as3corelib\src\com\adobe\serialization\json\JSONDecoder.as:64]
at com.adobe.serialization.json::JSON$/decode()[C:\Development\ContractProjects\Adobe\as3corelib\src\com\adobe\serialization\json\JSON.as:81]
at TestJSON/onJSONLoad()[D:\Other\Workplace\Flex\SampleProject\src\TestJSON.mxml:15]
at TestJSON/__xmlRpc_result()[D:\Other\Workplace\Flex\SampleProject\src\TestJSON.mxml:34]
at flash.events::EventDispatcher/dispatchEventFunction()

Awaiting for your reply.

Thanks for your precious time.
Sreekanth S

Anyone found a solution to this?