Class hierarchy for components

Flex components are implemented as a class hierarchy in ActionScript. Each component in your application is therefore an instance of an ActionScript class. The following figure shows this hierarchy:

Component class hierarchy

All components are derived from the ActionScript classes MovieClip, UIObject, and UIComponent and inherit the properties and methods of their parent classes. In addition, components inherit other characteristics of the parent classes, including event, style, and behavior definitions.

In general, you can do the following with components:

Set most writable properties, and some read-only properties, of an ActionScript class in MXML.
Set all event, style, and behavior properties of an ActionScript class in MXML.

Note: You cannot reference ActionScript methods in MXML; you can only reference them in ActionScript.

Version 1.5

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