if you have a reference to the ArrayCollection you can do collection.addEventListener(CollectionEvent.COLLECTION_CHANGE, collectionChange);
collectionChange will then get notified for different kinds of updates happening on the collection instance (see mx.events.CollectionEventKind for the available kinds) Dirk. > -----Original Message----- > From: flexcoders@yahoogroups.com > [mailto:[EMAIL PROTECTED] On Behalf Of Sebastian Feher > Sent: Thursday, May 10, 2007 6:46 AM > To: flexcoders@yahoogroups.com > Subject: [flexcoders] bindSetter on an ArrayCollection > > Hi, > > I ran into a situation where I need to be notified about > items being removed or added from/to a node that has > children:ArrayCollection in a hierarchical structure. I know > the deep binding works as I can see my model changes picked > by the Tree control. > > [Bindable] > private var myData :ArrayCollection = new ArrayCollection(); > > ... > > // trace(ChangeWatcher.canWatch(myData.getItemAt(0).children.getItemAt > (0), "children")) -> true > > BindingUtils.bindSetter(dataUpdated, myData.getItemAt > (0).children.getItemAt(0), "children"); /* -> public var > children :ArrayCollection = new ArrayCollection();*/ > > ... > > public function dataUpdated(value:ArrayCollection):void > { > trace("--- updated ---"); > } > > is being called only on assignments to children. > > How do I bind on an ArrayCollection? I would like to catch > the items added & removed to the collection. > > Regards, > Sebastian > > > > > -- > Flexcoders Mailing List > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > Search Archives: > http://www.mail-archive.com/flexcoders%40yahoogroups.com > Yahoo! Groups Links > > > >
