Did anyone find out solution of this issue,my flex application is also facing
same issue.


pvbai wrote:
> 
> 
> I have a problem with the vertical scrollbar. I am having a problem
> when I update the tree dataprovider with new data on the run. When the
> scrollbar is visible and if I scroll to the bottom of the tree and
> scroll back to the top, the first node in the tree disappears.
> 
> 
> After the dataprovider update I do the below
> tree.invalidateList()
> tree.invalidateDisplaylist()
> 
> Even after doing all the above sometimes I see that the tree area
> displays old nodes over the new nodes or sometimes the tree doesnot
> get refreshed properly
> 
> Any inputs suggestions will be greatly helpful
> 
> Thanks in advance,
> Flex user.
> 
> 
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