Flex testing. Intelij. Adobe. TextLayoutFramework. O'Reilly Media — Webcasts. Adobe. Project Planning. Working with States in Flex 4. Working with States in Flex 4by Frank SommersSeptember 16, 2009 Summary Flex 4's new syntax simplifies working with application states. This article provides a tutorial introduction into UI state management with Flex 4, and includes a complete example.
Stateless Web applications aim to store as little state on the server as possible. Reducing, or even eliminating, reliance on server-side state makes it easier to implement a scalable infrastructure, at least in principle. At the same time, only the simplest Web applications can function completely without state. Dispatching a request to an online weather reporting service may work in a purely stateless fashion, but more sophisticated applications must keep track of where a user is in a complex data entry process, possible data validation errors, and so on.
Instead of storing state data on the server, rich-client applications may choose to store such information on the client. Click on "Need to register? " Listing 1: Login box with Flex 3. AHPopUpAnchorTest.
Develop Tools. FFDmag :: Frameworks. States and Components in Flex 4. States and Components in Flex 4by Chet HaaseApril 23, 2010 Summary With a demo app from his book, Flex 4 Fun, Chet Haase shows how to make components visible only in specified application states in Flex 4. Most applications enter into many different states over time. An application may have different screen states, for example, such as a shopping site that enables searching on one screen, search results on another, and shopping cart details on yet another.
An application's individual components may have different states as well, like a disabled state for a button until the user has entered their billing address. One of the innovative things about the Flex platform is that this concept of states is supported by the API. Flex provides a way to describe the different states of your application and components in your MXML code directly. The underlying concept and implementation of states did not change significantly between Flex 3 and Flex 4, but the syntax for states changed dramatically.
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