You're on the right track. Remoting calls are done asynchronously, so code that depends on the result of an HTTPService can't be placed immediately after the remoting call. The data will not have loaded before those lines are executed.
The HTTPService's result attribute defines an event handler for when the XML is finished loading. That is why xmlObj = XML(bookData.lastResult) performs in the manner you'd expect. What you can do is call a function in place of that line and do your xmlObj assignment and all your other processing from there. With regard to calling a function when entering a state: If you have some event that is causing your application to change states, why not call the HTTPService from within that event handler? --- In [email protected], "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > > > I have a box in one state, I remove the box and then add another box. > I do this so when the box is complete, I have something to trigger > getting data from an xml file. (That doesn't seem right, is there a > better way to trigger a function on entering a State ? ) > > I'm testing the data in 2 ways, 1 works and the other doesn't. > the HTTPservice: > <mx:HTTPService id="bookData" url="../media/books.xml" > resultFormat="e4x" result="xmlObj = XML(bookData.lastResult)" /> > > When I send the service: > bookData.send(); > the data is sent to this textArea > <mx:TextArea text="{xmlObj.toString()}"/> > > So far so good, however, if I put this other test immediately after the > service call, I'm getting the dreaded NULL reference error. > > trace(xmlObj.stock.(@id == "1").name); > Does this mean I need to check for load completion, like an event > listener on an UrlLoader ? (if so, How? ) > The documentation seems to indicate it shouldn't be neccesary, so I'm > not even sure that's the problem > What's wrong ? > > > The xml is below > <?xml version="1.0" encoding="iso-8859-1"?> > <books> > <stock id="1"> > <name>The Picasso Code</name> > <author>Dan Blue</author> > <category>Fiction</category> > <description>Cubist paintings reveal a secret society > of people who really look like that</description> > </stock> > </books> >
