Oops. I spoke too quickly. I noticed
the difference – in #1, “handleTimer” is in quotes, in #2, it
is a function reference. So it may well work!
Thanks, Abdul!
Actually, only #2 below works. #1 does not
work. But the good news
is that #2 does and we're happily updating!
Appreciate the suggestion!
--- In [email protected],
"Abdul Qabiz" <[EMAIL PROTECTED]> wrote:
> Hi Rick,
>
> This is scope issue, handleTimer() function
is being called in
different
> scope and updateData(..) function is not
resolved in that scope,
hence
> not invoked. This problem happens when you
pass a function
reference to
> setInterval(..), this is currently issue with
setInterval(..).
>
> With little change in your code, you can
avoid this using any one
of
> following ways:
>
>
> 1)
>
>
function updateData() {
>
>
trace('updating');
>
>
TagDataService.send
();
>
>
trace('updated');
>
>
}
>
>
>
>
function handleTimer() {
>
>
trace('firing');
>
>
updateData();
>
>
trace('fired');
>
>
}
>
>
>
>
function enableTimer() {
>
>
setInterval(this,
> "handleTimer", 5000 );
>
>
}
>
>
>
>
>
>
>
>
>
> 2)
>
>
>
> function updateData() {
>
>
trace('updating');
>
>
TagDataService.send
();
>
>
trace('updated');
>
>
}
>
>
>
>
function handleTimer() {
>
>
trace('firing');
>
>
updateData();
>
>
trace('fired');
>
>
}
>
>
>
>
function enableTimer() {
>
>
setInterval(
> mx.utils.Delegate.create(this, handleTimer),
5000 );
>
>
}
>
>
>
>
>
> hope that helps...
>
>
>
> BTW! This has been discussed earlier, you can
search archives to
know
> more...
>
>
>
> -abdul
>
>
> ________________________________
>
> From: [email protected]
[mailto:[email protected]]
On
> Behalf Of Rick
Bullotta
> Sent: Tuesday, June 28, 2005 8:15 AM
> To: [email protected]
> Subject: [flexcoders] Using setInterval to
call an HttpService and
> update visual components
>
>
>
> Using the following AS, I expected to see the
updateData method
being
> called each 5 seconds. The
"firing" and "fired" trace output
occurs,
> but the updateData method is never
called. The enableTimer
method is
> called upon creation of a DataGrid which is
the display object for
the
> HttpService named TagDataService. If
the updateData method is
> explicitly called (via a button press),
everything works fine.
What am
> I missing?
>
>
>
>
function updateData() {
>
>
trace('updating');
>
>
TagDataService.send
();
>
>
trace('updated');
>
>
}
>
>
>
>
function handleTimer() {
>
>
trace('firing');
>
>
updateData();
>
>
trace('fired');
>
>
}
>
>
>
>
function enableTimer() {
>
>
setInterval(
> handleTimer, 5000 );
>
>
}
>
>
>
>
>
>
>
> --
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