Flex 3 had some language tags we are all familiar with like <fx:Binding>, <fx:metadata>, <fx:script> and <fx:style> to name a few.
Flex 4 introduces some new mxml tags you can use when writing mxml classes. They are <fx:Declarations>, <fx:Definition>, <fx:Library>, <fx:Private> and <fx:Reparent>.
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Uncategorized | Tagged: comparison, Declarations, Definition, flex, Flex 3 SDK, Flex 4 SDK, language tags, Library, mxml, Reparent | 
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Posted by flexblackbelt
Now that Flex SDK 4 was released, I thought I’d do a series of posts on the differences between Flex 3 and Flex 4 SDKs that will hopefully help migrate your Flex 3 app to Flex 4 or make the transition from SDK 3 to SDK 4 easier. I will be assuming you already know Flex 3 and will concentrate on the new in Flex 4 compared to Flex 3.
This post will serve as the index of the series, and I will be adding links to the different posts to this one as they become available, so come back from time to time to get updated.
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1 Comment | Uncategorized | Tagged: bidirectional, binding, comparison, components, currentState, data binding, Declaration, Definitions, excludeFrom, flex, Flex 3 SDK, Flex 4 SDK, Halo, includeIn, language tags, Library, MX, mxml, namespace, Reparent, spark, two-way, view states | Permalink
Posted by flexblackbelt
Flex Black Belt 