title: dataprovider tag is working in flex
body: <p>hai i m new in flex and was trying example but getting nothing</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="bookData.send()"&gt;
  &lt;mx:HTTPService id="bookData" url="/assets/books.xml"/&gt;
  &lt;mx:DataGrid x="56" y="250" width="950" dataProvider= "{bookData.lastResult.books.stock}"/&gt;
  &lt;/mx:Application&gt;
  </code></pre>
  
  <p>Above is my mxml file
  here is my books.xml</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="iso-8859-1"?&gt;
  &lt;books&gt;
  &lt;stock&gt;
  &lt;name&gt;The Picasso Code&lt;/name&gt;
  &lt;author&gt;Dan Blue&lt;/author&gt;
  &lt;category&gt;Fiction&lt;/category&gt;
  &lt;description&gt;Cubist paintings reveal a secret society of people who really look like that&lt;/description&gt;
  &lt;/stock&gt;
  &lt;stock&gt;....
  </code></pre>
  
  <p>i think i m doing something wrong in dataprovider tag
  reason is when i use </p>
  
  <pre><code>dataProvider = "{d}"
  </code></pre>
  
  <p>it return datagrid with object</p>