The thing is my xml is retrieved from a mysql database table which sometimes will have no records or 1 record which will mean the xml will have only 1 or no nodes which in turn causes the problem whereas sometimes it has many records therefore the xml file would have many nodes which would mean no problems.
I've heard of looping but can't figure out how to do it or apply it to my code. I've tried simply changing the array collection to xmllist collection but then the data doesn't seem to appear in my tilelist. How would you loop using my specific code there because I always need it returned as an array collection to populate the tilelist but have no idea how to loop? Cheers for your help so far. --- In [email protected], Robert Moss <rdm0...@...> wrote: > > We had the same issue, and in our case it was an easy fix. When we read in > the XML it was returning as an ArrayCollection as long as there were multiple > nodes. As you have found, if it was only one node it returned as a generic > object not an ArrayCollection. We were already looping through the > ArrayCollection to populate value objects that we were using to populate our > list. So before the loop we added, if xmlObject is an ArrayCollection than > loop else populate VO with returned data. Worked without issues ever since. > > Robert > > > > > > ________________________________ > From: thomas parquier <mailingli...@...> > To: [email protected] > Sent: Mon, April 19, 2010 9:27:13 AM > Subject: Re: [flexcoders] Problems With my XML Created Array Collection > > > what about xmllistcollection ?; > > --- > thomas parquier > http://www.web- attitude. fr/realisations/ > msn : thomas.parquier@ web-attitude. fr > softphone : sip:webattitude@ ekiga.net > téléphone portable : +33601 822 056 > > > > 2010/4/19 James <garymoorcroft_ i...@yahoo. co.uk> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >> > > > >> > > > >In my app I have an array collection which populates a tilelist. This array > >collection is populated by a remote xml file via a http request. Problem is > >if the xml only has 1 or no nodes I get a null object reference error. I > >know this is a known problem but I've never been able to find a valid > >solution for it which could be applied to my code. I've heard of looping > >through the xml to create an array collection or using xmllist collection > >but I don't know how these can be done whilst still allowing the data to be > >displayed in the tilelist. Can anyone help me out please? > > > >>The code for my httpservice, array collcection I'm trying to make and the > >>result of the http service and the tilelist it populates is shown below. As > >>I say this all works fine as long as the xml has more than 1 node but > >>causes the error if it doesn't:- > > > >><mx:HTTPService id="LinksService" result="linksResultHandler( event)" > >>resultFormat="object" method="POST" url="http://www.coolvisi ontest.com/ > >>getlinks. php"/> > > > >><mx:Script> > >> <![CDATA[ > > > >> import mx.rpc.events. ResultEvent; > >> import mx.collections. ArrayCollection; > > > >> [Bindable] private var LinksFullAC: ArrayCollection; > > > >> private function linksResultHandler( event:ResultEven t):void > >> { > >> LinksFullAC= LinksService. lastResult. categories. > >> category as ArrayCollection; > >> } > > > > > >> ]]> > >></mx:Script> > > > >><mx:TileList id="linkChoice" dataProvider="{LinksFullAC}" height="365" > >>width="665"/> > > > >>Here's my xml structure:- > > > >><categories> > >> <category> > >> <id></id> > >> <label></label> > >> <icon></icon> > >> </category> > >></categories> > > > >>Obviously I need the array collection to be populated by id, label and icon. > > > >>Thanks for any suggestions. > > > > >
