If I got you right, when the scroll goes off and you give the List a new dataprovider, the updated data does not reflect in the List ? That seems very strange, as when you are giving the new dataprovider it should take care of the renderer.
Did you tried resizing the application when the scroll goes off ? Does the resizing brings back the updated data ? On Thu, Mar 24, 2011 at 6:27 PM, Eric DeCoff <[email protected]> wrote: > Laurence, > > Take a look at my datagrid render itemrender from 4.5 > > > > > On Thu, Mar 24, 2011 at 5:36 PM, Laurence MacNeill <[email protected] > > wrote: > >> Maybe y'all can help me here... I've been banging my head against the >> wall for hours on this stupid thing, and I can't seem to figure it out... >> >> I have a spark Panel which contains a spark List. The List scrolls >> automatically -- no user interaction required, as this is a simple app >> that's just being used on a large display-screen at a convention center. >> It's displaying a list of upcoming events, and that list needs to be updated >> every so often (you know, if an event has sold out or been cancelled or >> whatever) so I'm updating the data in the List's dataProvider every 3 >> minutes. >> >> As the day goes on, the list gets shorter and shorter -- events that are >> in the past are removed from the dataProvider because the database query >> excludes events that started more than 15 minutes ago. >> >> When the list is short enough, there is no more scrolling. There's enough >> room to display all the events without the list automatically scrolling. >> THAT is when the problem occurrs -- the custom item-renderer stops updating, >> because it's not scrolling off the screen anymore... Even though I'm >> calling the .refresh() method on the List's data-provider, it's not updating >> the renderers that are already being rendered on the screen. >> >> So. How to I make it update those renderers that are already on the >> screen? I've tried about 20 different suggestions that I found on >> Google (my own custom-written invalidateListDisplay function since a Flex 4 >> List doesn't have one, using the List.dataProvider.itemUpdated() thingy, >> setting the List's itemRenderer = null then back to the custom itemRenderer >> again both with and without a validateNow() call in there, using the >> updateRenderer() method, etc., etc..) I've tried them all, and NOTHING has >> worked. >> >> I've really got to get this figured out soon. It's for a live show that's >> happening right now. >> >> Thanks, >> Laurence MacNeill >> Mableton, Georgia, USA >> >> > > > > -- > Eric R. DeCoff > Changing the world, > 1 line of code at a time > -- Thanks, Vaibhav Seth.
