Problem processing xml in flex3

Question

Hi All,
I am just starting to learn flex and got stuck on processing/parsing xml data in flex client.
I have a jsp page which returns xml. Returned xml contains this:
<?xml  version="1.0" encoding="ISO-8859-1" ?>
- <results type="success">
- <products>
- <product>
<id>6</id>
<cat>electronics</cat>
<name>Plasma Television</name>
<desc>65 inch screen with 1080p</desc>
<price>$3000.0</price>
</product>
- <product>
<id>7</id>
<cat>electronics</cat>
<name>Surround Sound Stereo</name>
<desc>7.1 surround sound receiver with wireless speakers</desc>
<price>$1000.0</price>
</product>
- <product>
<id>8</id>
<cat>appliances</cat>
<name>Refrigerator</name>
<desc>Bottom drawer freezer with water and ice on the door</desc>
<price>$1200.0</price>
</product>
- <product>
<id>9</id>
<cat>appliances</cat>
<name>Dishwasher</name>
<desc>Large capacity with water saver setting</desc>
<price>$500.0</price>
</product>
- <product>
<id>10</id>
<cat>furniture</cat>
<name>Leather Sectional</name>
<desc>Plush leather with room for 6 people</desc>
<price>$1500.0</price>
</product>
</products>
</results>
And I have flex code that tries to iterate over products like following:
private function productListHandler(e:JavaFlexStoreEvent):void
                productData = new ArrayCollection();
                trace(JavaServiceHandler(e.currentTarget).response);
                for each (var item:XML in JavaServiceHandler(e.currentTarget).response..product )
                    productData.addItem( {
                        id:item.id,
                        item:item.name,
                        price:item.price,
                        description:item.desc
with trace, I can see the xml being returned from the server. However, I cannot get inside the loop as if the xml was empty. In other words, JavaServiceHandler(e.currentTarget).response..product must be returning nothing. Can someone please help/point out what I could be doing wrong.
Thanks
aja

Answer 1

I put together a simple example of looping through xml results for you:
<?xml version="1.0" encoding="utf-8"?><mx:Application 
xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"creationComplete="myData.send()"
>
 <mx:Script><![CDATA[
import mx.collections.ArrayCollection; 
import mx.rpc.events.ResultEvent; 
private var productData:ArrayCollection; 
private function productListHandler(event:ResultEvent):void{productData =
new ArrayCollection(); 
for each (var item:XML in event.result..product ){productData.addItem( {
id:item.id.toString(),
item:item.name.toString(),
price:item.price.toString(),
description:item.desc.toString()
]]>
</mx:Script><mx:HTTPService  
id="myData" url="data/data.xml" result="productListHandler(event)" resultFormat="e4x" />  
</mx:Application>
But you must know that you can simply return the results as "object" (the default), and then you don't have to loop through the results at all.