Webservices inside functions

Question

I have a webservice created with just an id and wsdl using
the mx:WebService. Whenever I make a button to call a method from
the web service I can use the bindalbe last result with no problem.
However, when I call the method from within a function, lastResult
is always null. The function, a cfc function, merely returns a
string "test".
//the function below never has anything in lastResult
(looking at debugging and a billion other ways of testing. I've
simplified below
private function test():String {
newService.testCFC();
var myString:String = newService.testCFC.lastResult
return myString;
<mx:WebService id="newService" wsdl="
http://localhost:8500/com/controller/rpController.cfc?wsdl"/>
//This works just fine. testCFC is called when the button is
clicked and the label shows up
<mx:Button label="{newService.testCFC.lastResult}"
click="newService.testCFC()"/>

Answer 1

quote:
Thank you. I seem to understand all that now. I still have
one question regarding the ActionScript. Is it possible to have a
single function that instantiates a webservice, calls a method, and
returns the value from the method?
I was trying to avoid the <mx:webservice>
Well you probably could, but you'd be fighting the way the
language works. It's event driven which is the asynchronous part,
ie., can be executed in any order. "batmitra" has described it well
and I would suggest that you follow that model.
Also you don't need to use <mx:webservice> You can call
it in a method like so:
import mx.rpc.soap.WebService;
var webService:WebService = new WebService( );
webService.wsdl = "
http://localhost:8500/com/controller/rpController.cfc?wsdl";
webService.loadWSDL( );
webService.addEventListener(LoadEvent.LOAD, processWSDL);
which will call the method "processWSDL" when the service is
complete. You can then check for errors and process the results. If
you are convinced you want to do it one function then I guess you
could try to call yourself, but I haven't done that and don't know
how it will work.