Changes to the masterArray in the ModelLocator should be automatically reflected in the AC if you use either of the binding methods I posted. If not, sorry. That's all I have.
-TH --- In [email protected], "Tom Bray" <[EMAIL PROTECTED]> wrote: > > The problem is that changes to ModelLocator.getInstance ().masterArray don't > update the views' dataProviders. In other words, the ArrayCollections that > use masterArray as their source don't know when new items are added to or > removed from masterArray. That's why I was thinking that masterArray would > actually be masterArrayCollection and I'd bind each of the view's > dataProvider ACs to it so they could stay in sync. I bound the master AC to > the sub ACs using BindingUtils and was surprised to see the filter function > on the sub ACs affect the master AC. I posted sample code here: > http://groups.yahoo.com/group/flexcoders/message/39064?l=1 > > Thanks again! > > -Tom > > On 6/9/06, Tim Hoff <[EMAIL PROTECTED]> wrote: > > > > > > Something like this should do the trick: > > > > <mx:Script> > > <![CDATA[ > > > > import mx.collections.ArrayCollection; > > import org.ets.main.code.model.ModelLocator; > > > > [Bindable] > > public var viewDataProvider : ArrayCollection; > > viewDataProvider=new > > ArrayCollection({ModelLocator.getInstance().masterArray}); > > > > ]]> > > </mx:Script> > > > > -TH > > > > > > --- In [email protected] <flexcoders% 40yahoogroups.com>, "Tom > > Bray" <tombray@> wrote: > > > > > > Thanks, Tim. That makes sense but there's one limitation I'm not sure > > how > > > to work around. That master Array of users is going to be constantly > > updated > > > by the server to show who's currenlty online. Since an Array isn't > > > bindable, how would you propagate changes from that Array to the > > filtered > > > ArrayCollections that use it as their source? > > > > > > -Tom > > > > > > On 6/9/06, Tim Hoff TimHoff@ wrote: > > > > > > > > Hey Tom, > > > > > > > > In response to this question and the BindingUtils and > > > > ArrayCollection.filter question, I offer this suggestion. In the > > > > ModelLocator maintain a single master Array of all the users. Then > > > > in each instance of your view components, create a new bound > > > > ArrayCollection (dataProvider), with the master Array as the > > > > underlying source. Each of the ArrayCollections will have a > > > > different filterFunction based on the type of view component that is > > > > instantiated. Because the ArrayCollections don't actually contain > > > > any data, just pointers to the underlying Array, I would handle the > > > > ArrayCollections and filterFunctions in viewHelpers. In a sense, > > > > you would be creating separate sub-sets of the master Array in each > > > > instance of your views. If you preferred, you could maintain each > > > > ArrayCollection (Array of ArrayCollections) in the ModelLocator as > > > > well. > > > > > > > > I hope that this makes sense, > > > > Tim Hoff > > > > > > > > > > > > --- In [email protected] <flexcoders% 40yahoogroups.com><flexcoders%40yahoogroups.com>, > > > > "Tom > > > > Bray" tombray@ wrote: > > > > > > > > > > Say my model has an ArrayCollection of all the users that are > > > > > connected to my Flex app. I then have configurable list views that > > > > > display different subsets of that collection based on different > > > > user > > > > > properties (gender, age, location, etc.). Multiple views, multiple > > > > > filters, all being fed from the same master ArrayCollection of all > > > > > connected users. I even want the user to be able to dynamically > > > > > create new views with different filters. > > > > > > > > > > Unless there's something I'm missing, each view is going to need > > > > its > > > > > very own ArrayCollection that has its own filter function set up. > > > > I'm > > > > > picturing a wrapper class that provides addFilter() and > > > > removeFilter() > > > > > methods so that the AC's filter function can traverse an array of > > > > > other filters -- kind of a CompoundCommand pattern. > > > > > > > > > > Assuming that's part of the correct approach, I want my master AC > > > > to > > > > > pump changes out to the filtering ACs which pump changes out to > > the > > > > > views. Is there a way to make the binding mechanism work for this? > > > > > Is there a simpler approach I'm overlooking? > > > > > > > > > > Any tips you can send my way would be greatly appreciated. > > > > > > > > > > Thanks, > > > > > > > > > > Tom > > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Protect your PC from spy ware with award winning anti spy technology. It's free. http://us.click.yahoo.com/97bhrC/LGxNAA/yQLSAA/nhFolB/TM --------------------------------------------------------------------~-> -- 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 <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
