Post Variables Using Actionscript

Question

Hi,
I have seen on the docs that we could write HTTPService in
Actionscript method. I have completed the entire section based on
the description of the method defined on the doc, but I am having
some issues defining the variables to pass to the actual service
(mx:request as in MXML).
I need to know the actual variable that gets passed to the
service, because I would like to reuse the information returned
from the service for further edits. Since this information is not
stored in the XML, I wonder if anyone can tell me what is wrong
with the syntax below? Currently, all I get is this error:
TypeError: Error #1009: Cannot access a property or method of
a null object reference.
Anything is appreciated.

Answer 1

"alice_data" <[email protected]> wrote in
message
news:ge9nf1$1ai$[email protected]..
> Hi, Amy:
>
> Sorry, but I think I am getting a little confused at
this point. I have
> removed
> var loader:URLLoader = new URLLoader();
> loader.addEventListener(Event.COMPLETE,
function(event:Event):void {
> trace("finished sending and loading: "+ loader.data);
> });
> loader.load(request);
> and ran the code again and received the same error as
before.
>
> Part of the problems with the error I have been getting
is that I have
> not
> defined my parameters correctly, but again I tried to
take the parameter
> definition from the following line, it tells me I need
one argument:
> <mx:Button
> label="Submit" id="mySubmitButton"
click="useHttpService()"/>. What should
> I
> put in the parenthesis?
>
> The doc I referred to is at
>
http://livedocs.adobe.com/flex/201/html/wwhelp/wwhimpl/common/html/wwhelp.htm?co
>
ntext=LiveDocs_Book_Parts&file=dataservices_099_15.html, but I
think my
> main
> problem here is that I am not sure how to define the
variables and pass it
> to
> the actual service and have the variables be handled
internally through
> Actionscript. Or, is what I trying to accomplish here
not possible at all?
Try changing this:
private var request:HTTPService;
to
private var request: URLRequest;
I still think you're getting a lot of warnings you're
ignoring (check the
problems tab). You should have gotten a duplicate variable
definition for
what you had.
What you're trying to accomplish is possible, but you DO need
to pay
attention to the warnings and errors Flex is trying to tell
you about. They
are your friend.