How about filtering the ArrayCollection?
Tracy Spratt Lariat Services Flex development bandwidth available ________________________________ From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of Mike Sent: Tuesday, January 27, 2009 4:32 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: Best way to toggle elements in ArrayCollections Jason, I'm doing something similar with checkboxes and the DataGrid. Are you able to turn the visibility of your component on/off ? Rather than modify the dataset, you may be able to use a checkbox event to trigger the visibility change of your display component. ~Mike --- In flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> , "Merrill, Jason" <jason.merr...@...> wrote: > > So in my Flex 3 project I have an ArrayCollection, like this: > > [Bindable] > private var myDataProvider:ArrayCollection = new ArrayCollection( > [ > {country:"Apple", quantity:5}, > {country:"Pear", quantity:3}, > {country:"Banana", quantity:7}, > ]); > > This is the dataprovider for another visual component (this is not the > actual data, I've simplified it for the sake of clarity in asking this > question). I have some checkboxes that I want to use to toggle elements > in and out of the arrayCollection, thus changing what's shown in the > visual component which is bound by databinding. I thought about just > having a visual property in the dataprovider, but then found out I > cannot access display list items in this third party chart component I > am using, so the only way to change what is shown in the chart component > is to change what's contained in the array collection. > > My question is, while I can think of ways to do this (adding and > removing elements in the ArrayCollection), but they all involve some > pretty ugly Actionscript. Is there a good way to handle this, but keep > my data intact? How would you use checkboxes to toggle data in and out > of the ArrayCollection elegantly? > > Thanks, > > Jason Merrill > Bank of America <<Picture (Device Independent Bitmap)>> > Instructional Technology & Media * GCIB & Staff Support L&LD > > Interested in Flash Platform technologies? Join the Bank of America > Flash Platform Developer Community > <blocked::http://sharepoint.bankofamerica.com/sites/tlc/flash/default.as <http://sharepoint.bankofamerica.com/sites/tlc/flash/default.as> > px> > Interested in innovative ideas in Learning? Check out the Innovative > Learning Blog > <http://sharepoint.bankofamerica.com/sites/ddc/rd/blog/default.aspx <http://sharepoint.bankofamerica.com/sites/ddc/rd/blog/default.aspx> > > and subscribe > <http://sharepoint.bankofamerica.com/sites/ddc/rd/blog/_layouts/SubNew.a <http://sharepoint.bankofamerica.com/sites/ddc/rd/blog/_layouts/SubNew.a > > spx?List=%7B41BD3FC9%2DBB07%2D4763%2DB3AB%2DA6C7C99C5B8D%7D&Source=http% > 3A%2F%2Fsharepoint%2Ebankofamerica%2Ecom%2Fsites%2Fddc%2Frd%2Fblog%2FLis > ts%2FPosts%2FArchive%2Easpx> . >
