CF8 install to work with Flex 3

Question

...well Flex 3 or other flash remoting...
I've been doing CF coding for a while now. A year or so ago I
tried to do some flash remoting but could never get the flash to
talk to CF. I could get the CF to provide XML to the flash
component but I could never talk to the CFC's directly. I ended up
scrapping the flash and finished the coding in CFML.
Now, I've got a little spare time and I thought I'd learn
Flex 3. Things in my dev environment have changed a small amount; I
went from CF7 to CF8. Thinking that CF8 had better support for
flex/flash I started trying to connect to the CF CFC again and have
run into the same issues all over again.
I've dug over the past two weeks looking for anything that
could be causing the issue (the component has public access and I
can now see connection errors). I'm pretty sure that it's
coldfusion at this point. In the administrator I've got the flash
remoting and RDS enabled.
I've tried coldfusion on linux and win2k3 with the same
results. I actually has less luck with flex builder with coldfusion
running on linux.
What am I missing to allow connection to CF from a flash/flex
component?

Answer 1

Hi,
From your Flex application, you want to use the RemoteObject
MXML tag (<mx:RemoteObject />). As long as Flash Remoting is
available in the CFAdmin, which you indicated it is, it should
work. I've done/do this running CF8 on Mac OS X, Linux, and Win
2003.
Here's a sample of MXML code for this.
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute" creationComplete="init()">
<mx:Script>
<![CDATA[
import mx.rpc.events.FaultEvent;
import mx.collections.ArrayCollection;
import mx.rpc.events.ResultEvent;
import mx.controls.Alert;
[Bindable]
private var myAC:ArrayCollection;
//runs on creationComplete event of mx:Application tag
private function init():void{
this.ro.getAll();// call the method on your CFC when app
inits
private function gotEm(event:ResultEvent):void{
myAC = new ArrayCollection();
myAC.source = event.result as Array;
private function oops(event:FaultEvent):void{
Alert.show(event.fault.toString());
]]>
</mx:Script>
// the remote object, which connects to CF via FlashRemoting
<mx:RemoteObject id="ro" destination="ColdFusion"
source="webroot.appfolder.cfcfolder.cfcname">
<mx:method name="getAll" fault="oops(event)"
result="getEm(event)" />
</mx:RemoteObject>
// DataGrid to hold results..naturally you would make this
nicer :)
<mx:DataGrid id="dg" dataProvider="{myAC}"/>
</mx:Application>
Have you tried similar code? It's often helpful to see some
code you're having trouble with, if that's possible.
Hope this helps!
Craig