On a recent project Jon discovered some performance issues with ArrayCollections in Flex. In this episode we discuss some of the realities of working with large data sets in Flex. For additional details read Jon’s blog about the performance problems with ArrayCollection and check out the associated bug in Flex’s bug db. We’ve also put together two Flex demos that illustrate the performance issues:
- Instancing Array vs ArrayCollection Performance (view source)
- Adding items to Array vs ArrayCollection Performance (view source)
Check out the video and let us know what you think.