Traditional application programmers found it challenging to adapt to the animation metaphor upon which the Flash Platform was originally designed. Flex seeks to minimize this problem by providing a workflow and programming model that is familiar to these developers.
The Flex SDK comes with a set of user interface components including buttons, list boxes, trees, data grids, several text controls, and various layout containers. Charts and graphs are available as an add-on. Other features like web services , drag and drop, modal dialogs, animation effects, application states, form validation, and other interactions round out the application framework. In a multi-tiered model , Flex applications serve as the presentation tier.
Unlike page-based HTML applications, Flex applications provide a stateful client where significant changes to the view don't require loading a new page. Similarly, Flex and Flash Player provide many useful ways to send and load data to and from server-side components without requiring the client to reload the view.
Macromedia targeted the enterprise application development market with its initial releases of Macromedia Flex 1. Adobe significantly changed the licensing model for the Flex product line with the release of Adobe Flex 2.
The core Flex 2 SDK, consisting of the command-line compilers and the complete class library of user interface components and utilities, was made available as a free download. Adobe based the new version of Flex Builder on the open source Eclipse platform. The company released two versions of Flex Builder 2, Standard and Professional. The Professional version includes the Flex Charting Components library.
Enterprise-oriented services remain available through Flex Data Services 2. This server component provides data synchronization, data push, publish-subscribe and automated testing.
Unlike Flex 1. You can run a separate instance of Eclipse and run both Flex Builder 2 and Flex Builder 3 beta 3 in parallel. In the beta 1 release Flex Builder introduced the ability to target different versions of the SDK with different projects.
This feature continues in beta 3. The Professional edition has all the great features from the Standard edition, plus the Charting and visualization components, the profilers, and Flex Functional Testing Support. You can continue to use Flash Player 9 — the same as Flex However if you want to leverage the new framework caching feature or support for H.
Skip to content Q1. You can download all of the Flex 3 beta 3 bits from labs. How Will Flex 3 Be Packaged? When Will Flex 3 Be Released?
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