Some further advice: Do not attempt to create an item renderer from scratch until you have done 10-20. Find an example, there are many, and modify it for your use.
Renderers are optimized for performance by tightly integrating with the flex framework. That makes them a bit complicated. Tracy Spratt, Lariat Services, development services available _____ From: [email protected] [mailto:[email protected]] On Behalf Of |Mirko Sent: Monday, August 10, 2009 1:22 PM To: [email protected] Subject: RE: [flexcoders] Image source in ItemRenderer Thank you very much Tracy, will try that and post back results. Best regards Tracy Spratt-2 wrote: > > In your renderer, override set data(), set a "dirty" flag, and call > invalidateProperties() then in an override to commitProperties, check the > flag and perform your logic. > > > > You cannot use creationComplete for item-dependent logic because renderers > are recycled. > > > > Tracy Spratt, > > Lariat Services, development services available > > _____ > > From: flexcod...@yahoogro <mailto:flexcoders%40yahoogroups.com> ups.com [mailto:flexcod...@yahoogro <mailto:flexcoders%40yahoogroups.com> ups.com] On > Behalf Of |Mirko > Sent: Monday, August 10, 2009 9:57 AM > To: flexcod...@yahoogro <mailto:flexcoders%40yahoogroups.com> ups.com > Subject: [flexcoders] Image source in ItemRenderer > > > > > > > Hi, > > I have a situatition where i used custom ItemRenderer in TileList > component. > Item renderer basically consists of Image and Label component. Data > provider > is XML so Image and Label bindings are to da...@image and da...@desc which > is displayed just fine. > > My question is, how can i check before item is rendered if da...@image is > empty and if it is, set a custom image (like image_missing.jpg or smth) as > Image component source? I mean, i know a logic to check that but not sure > where to implement it? I tried in ItemRenderer when creationComplete event > is fired but with no success so if someone could help me a bit with a > simple > example or smth i would really appreciate it. > > Thanks in advance, > Mirko > -- > View this message in context: http://www.nabble. > <http://www.nabble. <http://www.nabble.com/Image-source-in-ItemRenderer-tp24900257p24900257.html > com/Image-source-in-ItemRenderer-tp24900257p24900257.html >> com/Image-source-in-ItemRenderer-tp24900257p24900257.html > Sent from the FlexCoders mailing list archive at Nabble.com. > > > > > -- View this message in context: http://www.nabble. <http://www.nabble.com/Image-source-in-ItemRenderer-tp24900257p24903832.html > com/Image-source-in-ItemRenderer-tp24900257p24903832.html Sent from the FlexCoders mailing list archive at Nabble.com.
