| Flex 2 Developer's Guide > Flex Data Features > Binding Data | |||
This topic describes data binding, which is a feature that lets you pass data between client-side objects in an application. Binding automatically copies the value of a property of a source object to a property of a destination object when the source property changes. Binding lets you pass data between the different layers of the application, such as the user interface, data models, and data services.
Flex 2.01