RE: [flexcoders] addressing items rendered in TileList

[Tracy Spratt]

Yes, this is a different “paradigm”.  You rarely work with the rendered components directly.  Instead, you manipulate the dataProvider.   To enable and disable elements in a TileList, you are going to need an itemRenderer.  That itemRenderer will set the enabled state of the rendered control according to a property (“imgenabled”) value in the dataProvider item that produced the rendered control.   On click of the check box, you will loop over the items in the dataProvider, and set the “imgenabled” property value as you need.  If you use the dataProvider API to update the dataProvider, the rendered controls in the TileList will automatically redraw and set their state according to the modified data.   There may be other ways, but this is a standard approach for data-driven Uis.   Tracy   From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Phil Marston Sent: Monday, August 28, 2006 12:17 PM To: flexcoders@yahoogroups.com Subject: Re: [flexcoders] addressing items rendered in TileList   Hi Tracy, Thanks for the response - I couldn't work out if it was a badly worded question or just the way I'm doing it made no sense! By subselections I mean I have a TileList with thumbnails representing items in a gallery (which is the dataProvider - the items are in an ArrayCollection).  Currently when a user clicks a thumbnail it displays in a separate viewer with additional associated data - all that's OK run of the mill stuff, but I'd like to disable some of the thumbnails (the subselection) according to certain attributes being selected (via a checkBox). Intuitively when the user selects the checkBox I want to loop through the items in the TileList and change the attributes of the ones that fit the condition (e.g. whether they're enabled), but I can't find an easy way of addressing them. I think I'm thinking about this from a Flash perspective and haven't quite got my head around using bindings and mixing between mxml objects and actionscript objects.  :-( Any relevant pointers would be good - thanks, Phil Tracy Spratt wrote: With all flex data driven controls, you will want to work with the dataProvider.   What exactly do you mean by “…address subselections…”?   Tracy   From: [EMAIL PROTECTED]ups.com [mailto:[EMAIL PROTECTED]ups.com] On Behalf Of Phil Marston Sent: Monday, August 28, 2006 8:46 AM To: [EMAIL PROTECTED]ups.com Subject: [flexcoders] addressing items rendered in TileList   Hi All, Anyone know how I can address items rendered in a TileList? I have a tileList <mx:TileList id="tipList" dataProvider="{gallery.tips}" itemRenderer="gallery.Thumbnail"/> which renders c.50 thumbnails and now I'd like to address subselections of those thumbnails and can't figure it out. ANY help appreciated Cheers, Phil -- __________________________________________________________ Phil Marston Technology Enhanced Learning Centre for Learning & Teaching University of Aberdeen Aberdeen AB24 3QY Email: [EMAIL PROTECTED]ac.uk Tel: +44(0)1224 273329 Mob: +44(0)7798 723660 Web: http://www.abdn.ac.uk/clt/ __________________________________________________________ The University of Aberdeen Open Day 29th August 2006 Booking is essential www.abdn.ac.uk/openday email [EMAIL PROTECTED]ac.uk or call 0800 027 1495 -- ______________________________________________________________ Phil Marston Technology Enhanced Learning Centre for Learning & Teaching University of Aberdeen Aberdeen AB24 3QY   Email: [EMAIL PROTECTED]ac.uk Tel: +44(0)1224 273329 Mob: +44(0)7798 723660 Web: http://www.abdn.ac.uk/clt/ ______________________________________________________________   The University of Aberdeen Open Day 29th August 2006 Booking is essential www.abdn.ac.uk/openday email [EMAIL PROTECTED]ac.uk or call 0800 027 1495 __._,_.___ -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com SPONSORED LINKS Software development tool Software development Software development services Home design software Software development company YAHOO! GROUPS LINKS  Visit your group "flexcoders" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. __,_._,___