The collection view classes in Flex such as List, TileList, DataGrid
etc. have an optimisation so that the component only instantiates
enough item renderers to display the items currently on screen. This
is presumably a necessary optimisation to keep from consuming massive
resources when rendering large collections.
The Flex 2 Store example implements a custom collection view that
does animation of renderers and state changes etc. and does live
filtering of the collection as the user drags a slider. It's
considerably cooler than the standard classes.
I want to do something similar in my app.
The question
As far as I can tell, the Flex Store isn't optimised for renderer
minimisation the way the standard collection classes are. I would
like to know at what point this approach is likely to run into
performance issues with collections approaching say two – three
hundred items.
Does anyone have any experience with this kind of thing?
Cheers,
Lach
