You might have to call measureWidthOfItems/measureHeightOfItems and set 
columnWidth and rowHeight.

Alex Harui
Flex SDK Developer
Adobe Systems Inc.<http://www.adobe.com/>
Blog: http://blogs.adobe.com/aharui

From: [email protected] [mailto:[email protected]] On Behalf 
Of mattgarland2000
Sent: Friday, November 20, 2009 10:30 AM
To: [email protected]
Subject: [flexcoders] Re: HorizontalList itemRenderer size does not resize on 
refresh



Thx. Gave it a whirl, no dice.

I need somehow to make the HorizontalList act like it had multiple image sizes, 
and measure them to get the largest rather than going with the first.

--- In [email protected]<mailto:flexcoders%40yahoogroups.com>, 
"jamesfin" <james.alan.finni...@...> wrote:
>
>
>
>
> I had a similar predicament recently...
>
> In my renderer code, I setup a listener to respond to external data changes. 
> In my case, I just needed to call invalidateDisplayList but you could reset 
> your sizes/etc. based upon the new data.
>
> ReportHorizontalList(this.parent.parent).dataProvider.addEventListener(CollectionEvent.COLLECTION_CHANGE,
>  outsideCollectionChanged);
>
> private function outsideCollectionChanged(evt:CollectionEvent):void{
> invalidateDisplayList();
> }
>
>
>
> --- In [email protected]<mailto:flexcoders%40yahoogroups.com>, 
> "mattgarland2000" <alias@> wrote:
> >
> > I am using a horizontallist as an answer bar in an e-learning app. The 
> > designer wants the answer boxes to stretch according to content (all should 
> > have the same size, and there is a minimum).
> >
> > This works fine when the dataProvider is set. BUT there is another 
> > requirement: after a wrong answer is clicked, there is feedback and the 
> > answers are scrambled.
> >
> > protected function tryAgain(event:Event):void
> > {
> > answers=CollectionUtils.noRepeatRandomizeXMLList(answers);
> > answerListRef.dataProvider=answers;
> > }
> >
> > After the scrambling, the text values are represented in their new places, 
> > and the itemRenderers are resized--but all at the minimum size, so any over 
> > the min size need scrollbars. The resize code is called it seems before the 
> > data is set.
> >
> > I should mention that I have a similar vertical list, with 
> > "variableRowHeight" set to true as well, and there the same code works fine.
> >
> > How do I force the HorizontalList to resize the renderers en masse after 
> > the new text values are set?
> >
>

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