I wouldn't do it that way. I would add one event handler for all textinputs and
then figure out which textinput generated the event.
input.addEventListener("change", changeHandler);
private function changeHandler(event:Event):void
{
Alert.show(event.target.parent.label);
}
--- In [email protected], "Keith Hughitt" <keith.hugh...@...> wrote:
>
> Could someone please explain to me how closures work in ActionScript? I
> am attempting to create a set of Flex Form fields, and assign an
> event-handler to each of them, however, it seems that after creation,
> all of the fields have the same event handler.
>
> For example:
>
> var i:int = 0;
> for each (var item:Object in this._myItems) {
> var f:FormItem = new FormItem();
> f.label = item.header;
>
> var input:TextInput = new TextInput();
>
> // Setup event-handler
> var self:MyClass = this;
>
> input.addEventListener("change", function (e:Event):void
> {
> Alert.show("Event-hanlder #: " + String(i));
> });
>
> i++;
>
> // Add text input to FormItem
> f.addChild(input);
>
> // Save a reference to the form control
> item.ui = f;
> addChild(f);
> }
>
> So I would expect that the number displayed when I change any given
> field matched the order of the field on the screen. When I run the code,
> however, no matter which field I adjust, the number is always the same
> (it is the number of the last form item to be added).
>
> It appears that what is happening is that a single function is being
> created, and each input field has a reference to that same function.
>
> Any suggestions? Any help would be greatly appreciated.
>
> Thanks!
> Keith
>
