Each fill operation is asynchronous and so are the calls to Alert.show
(). This means that code doesn't stop when these lines of code are
executed it continues to run the very next line.
With the fill operation you will not get a valid length until the
server responds to the request, however, during that time you will
continue to execute more fill requests until all projects within the
projectsArray have been iterated.
It is not clear what you are after here, if you want to display the
length of the filled collection after the server has responded then
you could do something like the following:
tmpArray.addEventListener(CollectionEvent.COLLECTION_CHANGE,
collectionChangeHandler);
taskDataService.fill(...);
function collectionChangeHandler(event:CollectionEvent):void
{
if (event.kind == CollectionEventKind.RESET)
{
// display the length using the event.target.length
}
}
The RESET kind is only dispatched when the collection has been
initially filled when managed by DataService.
There are more sophisticated approaches to this problem as well like
using a responder with the AsyncToken returned from the fill()
method, but, it is unclear if you are only after debugging
information or not. If you really only want debugg information then
use the <mx:TraceTarget /> in your application MXML and a debug
player then inspect the flashlog.txt or the console when using
FlexBuilder in debug mode.
--- In flexcoders@yahoogroups.com, "jonathan_merey" <[EMAIL PROTECTED]>
wrote:
>
> My problem is simple. I know each of my projects have tasks. If I
> delete the loop. The second Alert.show print the good length. But
with
> the loop, the second Alert.show print 0 except for the last loop.
If i
> delete the first Alert.show, the second print 0 even for the last
> loop. I understood its due to a problem of exectution time but how
> can i do to do what i want. Thank you.
>
>
> Here is the code :
>
> private function getTasks():void
> {
> currentState='';
> if (document.listProject.selectedIndex == -1)
> {
> var projectsArray:ArrayCollection =
> ArrayCollection(document.listProject.dataProvider);
> var tmpArray:ArrayCollection = new ArrayCollection();
> var i:int;
> for (i = 0; i < projectsArray.length; i++)
> {
> mx.controls.Alert.show(projectsArray.getItemAt(i).id);
> taskDataService.fill(tmpArray, "tasksProject",
> [projectsArray.getItemAt(i).id]);
> mx.controls.Alert.show(tmpArray.length.toString());
>
> }
> }
> else
> taskDataService.fill(document.tasksArray, "tasksProject",
> [document.listProject.selectedItem.id]);
> }
>
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