That's a good suggestion. Unfortunately I can't directly keep track of the ListCollectionViews unlike in the example. I have a function that returns these views with different filtering functions. I might be able to listen for COLLECTION_CHANGED on the ArrayCollection and call refresh then.
Unfortunately I have another problem, but I'm unable to distill it into a small example, which is that when the list has one item in it, and another is added, it appears that a duplicate of the first item was made. I am going to put off what I'm working on for now and see if we can switch to Flex 3 later. Thanks for your help. Ben --- In [email protected], "Tim Hoff" <timh...@...> wrote: > > > Ran your code with Flex 2.0.1 Hotfix 3 and was able to reproduce. The > first suggestion worked. Fixed it with: > > public function addItem():void { > trace("adding item", stuff.length); > stuff.addItem({label: stuff.length}); > filtered_stuff.refresh(); > } > > -TH > > --- In [email protected], "bnjmnhggns" <bhiggins@> wrote: > > > > I'm trying to find the bug and there's some that are close, like this > one: https://bugs.adobe.com/jira/browse/SDK-11852 > > > > Do you know if there's a workaround for Flex 2? > > > > Thanks, > > > > Ben > > > > --- In [email protected], Alex Harui aharui@ wrote: > > > > > > Tim, did you try that in Flex 2? I seem to recall it being a bug. > > > > > > 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 Tim Hoff > > > Sent: Monday, April 06, 2009 12:17 PM > > > To: [email protected] > > > Subject: [flexcoders] Re: ListCollectionView w/ a filterFunction as > a dataProvider - Flex 2 > > > > > > > > > Hmm, ran your code and it worked fine. Clicked the add item button > the first time and "1" showerd up. Maybe try adding > filtered_stuff.refresh(); to the addItem function. > > > > > > -TH > > > > > > --- In [email protected], "bnjmnhggns" <bhiggins@> wrote: > > > > > > > > Hi all, I've been having weird problems involving Lists, > dataProviders, ListCollectionViews with and ArrayCollections. I was able > to reproduce one of my problems below. > > > > > > > > I have a ListCollectionView (filtered_stuff) that's viewing an > ArrayCollection (stuff). stuff initially just has one element. > filtered_stuff has a filterFunction that filters out this element. > > > > > > > > Here's the weird part. Clicking on Add item once does not show the > added item in the List. Clicking on Add item again will result in TWO > items showing up in the list. After that, clicking Add item behaves as > you might expect. > > > > > > > > Why is it behaving this way? > > > > > > > > Thanks, > > > > > > > > Ben > > > > > > > > Code: > > > > > > > > <?xml version="1.0"?> > > > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";> > > > ! > <mx:Panel title="List dataProvider test" > creationComplete="onCreate()" > > > > paddingTop="10" paddingBottom="10" paddingLeft="10" > paddingRight="10"> > > > > > > > > <mx:List id="list" width="100%" dataProvider="{filtered_stuff}"/> > > > > <mx:Button click="addItem()" label="Add item"/> > > > > </mx:Panel> > > > > > > > > <mx:Script> > > > > <![CDATA[ > > > > import mx.collections.ListCollectionView; > > > > import mx.collections.ArrayCollection; > > > > > > > > [Bindable] public var stuff:ArrayCollection; > > > > [Bindable] public var filtered_stuff:ListCollectionView; > > > > > > > > public function addItem():void { > > > > trace("adding item", stuff.length); > > > > stuff.addItem({label: stuff.length}); > > > > } > > > > > > > > public function onCreate():void { > > > > stuff = new ArrayCollection([{label: 0}]); > > > > filtered_stuff! = new ListCollectionView(stuff); > > > > filtered_stuff.! fil terFunction = function(item:Object):Boolean { > > > > return item.label > 0; > > > > } > > > > filtered_stuff.refresh(); > > > > } > > > > ]]> > > > > </mx:Script> > > > > </mx:Application> > > > > > > > > > >
