Oh, and to be clear, I'm not assigning a new data-provider to the List at any time. I'm simply updating the data in the data-provider, then calling the .refresh() method on it.
Perhaps setting my data-provider to null, then back to the real data-provider would fix it? I'm gonna give that a try, just for kicks. L. On Thu, Mar 24, 2011 at 6:40 PM, Laurence MacNeill <laurence5...@gmail.com>wrote: > I agree, it *should* take care of the renderer. But it doesn't. Only if > the item scrolls off the screen then back onto the screen later does it show > the updates. It simply will not update if the item is on-screen. > > Re-sizing works, only if I can manage to re-size it enough to force the > item not to appear on the screen anymore. Actually, it has to go a bit > farther -- far enough for the item-renderer to be recycled. It's like the > data simply is not updated until the item-renderer is recycled. Perhaps > there's a way to force the item-renderer to be recycled, then? I don't > know... > > L. > > On Thu, Mar 24, 2011 at 6:36 PM, Vaibhav Seth <seth.vaibhav...@gmail.com > > wrote: > >> 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 <ericdec...@gmail.com>wrote: >> >>> Laurence, >>> >>> Take a look at my datagrid render itemrender from 4.5 >>> >>> >>> >>> >>> On Thu, Mar 24, 2011 at 5:36 PM, Laurence MacNeill < >>> laurence5...@gmail.com> 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. >> >> >
