Re: [flexcoders] Flex Function and Web Service ResultHandler Question

[Angelo Anolin]

Hi Tracy,

You mentioned that this is the only way...

But doesn't this kind of programming limits what the developer could actually 
do?

I mean for example, you have coded in the dragDrop event of a list control.  In 
the said event, you need to get some data through a web service.  The whole 
operation is dependent on the event handler for the dragdrop.  If you would 
only be allowed to process the operations further in the result handler of the 
web service, how could you then utilize the event which was the parameter in 
your dragdrop event?

I think this question also goes the same for the Alert.show function where the 
result handler deviates from the function/event with which it was executed.  If 
the continuation of execution would be on the Alert handler, it would be quite 
tedious on the part of the developer to be able to gather the 
variables/objects/handlers from the original function/event.

I am pretty sure Adobe / Flex team has thought about this but I may be doing 
things wrong.  So I would appreciate everyone's input.  I am in a bind right 
now cause this limitation(?) hampers me from being a lot more productive with 
Flex.

Thanks.

Angelo




________________________________
From: Tracy Spratt <tr...@nts3rd.com>
To: flexcoders@yahoogroups.com
Sent: Wednesday, 26 August, 2009 12:55:18
Subject: RE: [flexcoders] Flex Function and Web Service ResultHandler Question

  
You will have to initiate your “further
operations” from the result
handler.  There is no other way.
 
Tracy Spratt,
Lariat Services, development services
available

________________________________
 
From:flexcod...@yahoogro ups.com [mailto: flexcod...@yahoogro ups.com ] On 
Behalf Of Angelo Anolin
Sent: Tuesday, August 25, 2009
9:54 PM
To: flexcod...@yahoogro ups.com
Subject: [flexcoders] Flex
Function and Web Service ResultHandler Question
 
  
Hi FlexCoders,
 
Needing your input on the following:
 
I have created a function for the dragevent of a
list.
 
Code is as follows:
 
private function myFunction(evt: DragEvent) :void
{
 var nameID:String = 'Angelo';
 
 // Call a webservice operation here
 ws.GetStatus( nameID);
 
 Alert.show(String( _xmlGetStatus) , 'myFunction' );
 
 // I need to use the _xmlGetStatus here...
 // But the _xmlGetStatus is NULL?
 // Although in the Result Handler, it is not NULL.
}
 
private function getStatusResultHand ler(event: ResultEvent)
:void
{
 _xmlGetStatus = XML(event.result) ;
 Alert.show(String( _xmlGetStatus) , 'getStatusResultHan dler');
}
 
The result handler for the GetStatus web service
operation populates an XML variable which I declared on top of the script (i.e.
private var _xmlGetStatus: XML;).
 
When I run my application, myFunction executes but
the alert that is shown first is the one in the function myFunction, instead of
the one in the result handler.
 
I need to use the values in the XML variable
_xmlGetStatus for further operations in function myFunction, but then the value
is not populated right away.
 
Any way to handle this?
 
Thanks and regards,
Angelo