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Flex can’t do it all alone. While it’s possible to build a RIA in strictly ActionScript 3.0 or Flex 3’s MXML, sometimes you have to integrate the two to get the best result.
Be familiar with both methods of coding and you’ll be making some of the best rich internet apps yet. This post outlines the basics of creating button with both ActionScript 3 and MXML in Flex.
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