Your results are not in XML. Maybe you need to specify resultFormat="e4x"?
________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of its_llpj Sent: Monday, September 10, 2007 9:06 AM To: [email protected] Subject: [flexcoders] Re: Populating XMLListCollection and sending it to a Datagrid TypeError: Error #1009: Cannot access a property or method of a null object reference. at c100/onResult()[/Users/pjb54/src/berkleycenter_development/public/bin/c1 00.mxml:52] at c100/__orgProgramRequest_result()[/Users/pjb54/src/berkleycenter_develop ment/public/bin/c100.mxml:98] at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEven tFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.rpc.http.mxml::HTTPService/http://www.adobe.com/2006/flex/mx/internal ::dispatchRpcEvent <http://www.adobe.com/2006/flex/mx/internal::dispatchRpcEvent> ()[C:\dev\enterprise_bali\frameworks\mx\rpc\http\mxml\HTTPService.as:247 ] at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::resu ltHandler <http://www.adobe.com/2006/flex/mx/internal::resultHandler> ()[C:\dev\enterprise_bali\frameworks\mx\rpc\AbstractInvoker.as:168] at mx.rpc::Responder/result()[C:\dev\enterprise_bali\frameworks\mx\rpc\Resp onder.as:48] at mx.rpc::AsyncRequest/acknowledge()[C:\dev\enterprise_bali\frameworks\mx\ rpc\AsyncRequest.as:82] at DirectHTTPChannel.as$139::DirectHTTPMessageResponder/completeHandler()[C :\dev\enterprise_bali\frameworks\mx\messaging\channels\DirectHTTPChannel .as:359] at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEven tFunction() at flash.events::EventDispatcher/dispatchEvent() at flash.net::URLLoader/flash.net:URLLoader::onComplete() Line 52 is: trace(xmlResult.toXMLString()); Line 98 is part of the HTTPService: <mx:HTTPService id="orgProgramRequest" url="http://localhost:3000/organizations/flex_programs <http://localhost:3000/organizations/flex_programs> " showBusyCursor="true" result="onResult(event)" fault="onFault(event)" method="POST" useProxy="false"/> Thanks! --- In [email protected] <mailto:flexcoders%40yahoogroups.com> , "Alex Harui" <[EMAIL PROTECTED]> wrote: > > What is the full stack trace? > > > > ________________________________ > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> ] On > Behalf Of its_llpj > Sent: Monday, September 10, 2007 8:35 AM > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > Subject: [flexcoders] Re: Populating XMLListCollection and sending it to > a Datagrid > > > > Oops spoke too soon. I'm getting a TypeError: Error #1009: Cannot > access a property or method of a null object reference when I click on > the datagrid to send the ID. The code hasn't changed since the example > below, but I'm not sure how to troubleshoot this one. > > public function onSelectFirstGrid(event:Event):void > > { > > orgProgramRequest.addEventListener(Event.COMPLETE, onResult) > > //var params:Object = new Object(); > //params['id'] = dgOrg.selectedItem.orgID; > orgProgramRequest.send(dgOrg.selectedItem.orgID); > > } > > > public function onResult(e:ResultEvent):void > > { > > var xmlResult:XML = e.result as XML; > > trace(xmlResult.toXMLString()); //is that the xml you expected? > > var xlResult:XMLList = xmlResult.children(); //or other expression > > trace(xlResult.length()); //is that the right expression? > > dg2data = new XMLListCollection(xlResult) > > trace(dg2data.getItemAt(0).toXMLString()); > > } > > [Bindable] > public var dg2data: XMLListCollection; > > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> <mailto:flexcoders%40yahoogroups.com> > , "its_llpj" <its_llpj@> wrote: > > > > That's it! > > > > Thanks Tracy! Thanks everyone! > > > > > > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> , "Tracy Spratt" <tspratt@> wrote: > > > > > > Ah, yes of course, it almost certainly is. > > > > > > > > > > > > I suggest, in verbose style: > > > > > > var xmlResult:XML = e.result as XML; > > > > > > trace(xmlResult.toXMLString()); //is that the xml you expected? > > > > > > var xlResult:XMLList = xmlResult.children(); //or other expression > > > > > > trace(xlResult.length()); //is that the right expression? > > > > > > dg2data = new XMLListCollection(xlResult) > > > > > > trace(dg2data.getItemAt(0).toXMLString()); //to make It easy to know > > > the dataField > > > > > > > > > > > > Tracy > > > > > > > > > > > > ________________________________ > > > > > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> <mailto:flexcoders%40yahoogroups.com> > ] On > > > Behalf Of Alex Harui > > > Sent: Thursday, September 06, 2007 2:03 PM > > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> <mailto:flexcoders%40yahoogroups.com> > > > > Subject: RE: [flexcoders] Populating XMLListCollection and sending > it to > > > a Datagrid > > > > > > > > > > > > e.result may be XML and not XMLListCollection. > > > > > > > > > > > > ________________________________ > > > > > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> <mailto:flexcoders%40yahoogroups.com> > ] On > > > Behalf Of Tracy Spratt > > > Sent: Thursday, September 06, 2007 10:28 AM > > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> <mailto:flexcoders%40yahoogroups.com> > > > > Subject: RE: [flexcoders] Populating XMLListCollection and sending > it to > > > a Datagrid > > > > > > Are you sure onResult is getting called? If so, trace out > > > dg2data.toXMLString() to make sure you have what you expect. You > should > > > see readable xml. > > > > > > Make sure "name" is a first generation child node name in the item > > > node. > > > > > > Tracy > > > > > > ________________________________ > > > > > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> <mailto:flexcoders%40yahoogroups.com> > ] On > > > Behalf Of its_llpj > > > Sent: Thursday, September 06, 2007 12:13 PM > > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> <mailto:flexcoders%40yahoogroups.com> > > > > Subject: [flexcoders] Populating XMLListCollection and sending it to > a > > > Datagrid > > > > > > Hello, I'm trying to populate a datagrid. Here is my code. > Everything > > > works, but when I use the dataProvider dg2data within my datagrid it > > > comes back empty. I know there is data there, but not sure if I'm > > > missing something. > > > > > > public function onSelectFirstGrid(event:Event):void > > > > > > { > > > myRequest.addEventListener(Event.COMPLETE, onResult) > > > myRequest.send(dg.selectedItem.myID); > > > } > > > > > > private function onResult(e:ResultEvent):void > > > > > > { > > > dg2data = e.result as XMLListCollection; > > > } > > > > > > private function onFault(e:FaultEvent):void > > > > > > { > > > Alert.show(e.fault.message, "Could not load"); > > > } > > > > > > [Bindable] > > > public var dg2data: XMLListCollection; > > > > > > My DataGrid > > > <mx:DataGrid id="dg2" width="100%" height="100%" rowCount="10" > > > dataProvider="{dg2data}"> > > > <mx:columns> > > > <mx:DataGridColumn dataField="name" headerText="Name" /> > > > </mx:columns> > > > </mx:DataGrid> > > > > > > Thanks! > > > > > >
