Flex 3 SDK Vs. Flex 4 SDK – Part 1 – Namespaces

Flex 4 added some namespaces, while it still supports the Flex 3 namespaces. This can cause some confusion, more so since some classes are part of two namespaces. While Flex3 used only one namespace (xmlns:mx=”http://www.adobe.com/2006/mxml”), Flex4 uses 3 namespaces: xmlns:fx=”http://ns.adobe.com/mxml/2009″ xmlns:s=”library://ns.adobe.com/flex/spark” xmlns:mx=”library://ns.adobe.com/flex/mx” Note, that while there’s still a mx namespace, the URI is different. Each […]

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