Here is the list of reasons why I chose Flex for the RIA development.

Write Once Deploy Everywhere - Flex generates SWF that runs on top of Flash Player VM and behaves consistently across different browsers, even mobile phones later. With this, all the browser compatibility issues are basically offloaded by Adobe.
Solid programming model with rich [...]

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Flex Performance Guidelines

Avoid nested container - it is resource intensive for Flex to figure out the x,y of the elements via sizing and measuring algorithm. Tips: hard-code x,y and width and height.
Naviagtor containers have built-in deferred instantiation - eg. Accrdion, TabNavigator, ViewStack.
Progressive layout improves initialization experience using queued creationPolicy in the deferred instantiation architecture. UI element are loaded in the successively [...]

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What is Cairngorm?
Adobe Consulting Group has defined an architectural framework for Flex application, named "Cairngorm". The framework has borrowed quite a bit of design patterns from GOF and J2EE. Its goal is to help us to layout the groundwork for complicated RIA. It is interesting to see how those patterns work together in a seamless [...]

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There are different kinds of events in the Flex world. An event can be generated from user gesture, return of requests and component lifecycle. Use event is a two step process, (1) You need to write the handler (2) You need to register the handler to the event hook. To register event, there are two [...]

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Have you ever used [Bindable] in Flex? Do you know it is metatag? Apart from this, there are 12 more documented metatag in Flex framework. I will list them all out here for your reference:
ArrayElementType
Data type restriction like Java Generic
[ArrayElementType("String")]
public var arrayOfStrings:Array;
Bindable
Allows for easy data synchronization within the components. Bindable can be used to [...]

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I have come across an excellent article from Joe Berkovitz that talks about a “right” way to architect your application. I like this article a lot. It gives me a good refresh of what I have learnt in these years. I decide to spend a little time to go over some of the key points [...]

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