It depends on how you wrote the renderer. You can try overriding the "function set data()" to check for changes to the object referenced by the renderer, but then if some sub-property changes, the renderer will not update.
Might be better to understand why it flickers when updating. Alex Harui Flex SDK Developer Adobe Systems Inc.<http://www.adobe.com/> Blog: http://blogs.adobe.com/aharui From: [email protected] [mailto:[email protected]] On Behalf Of Baz Sent: Monday, October 05, 2009 12:32 PM To: [email protected] Subject: [flexcoders] custom itemrender flicker If I have a custom item render based on an ArrayCollection with 10 times, and just for fun, I loop through those 10 items and setItemAt the exact same values that are already there - on screen the list of items reloads in a sense, re-building itself to the exact same values. I would like that in such a case, the on-screen controls know that they are the same as before and not to rebuild themselves. Is this possible? Can I intercept some event to double check whether they are the same or different? The goal of course, is to have this behaviour even if one some items changed. For example if I change only the 10th item, I would expect only the 10th item to refresh, no the whole collection. Thanks for any ideas! P.S. I am not useing refresh() on the ArrayCollection is it set to auto-update. Also, all my setItemAt calls are done in commitProperties()
