Chapter 14. Data Binding

The Flex Framework provides a robust structure for architecting component-driven applications. Within this powerful framework is an event-based system in which objects can subscribe to updates of property values on other objects by using data binding.

Data binding provides a convenient way to pass data between different layers within an application, by linking a source property to a destination property. Changes to properties on a destination object occur after an event is dispatched by the source object to notify all destination objects of an update. With the property on a source object marked as bindable, other objects can subscribe to updates by using a destination property. To enable data binding on a property, you must define the [Bindable] metadata tag in one of three ways: