source Property

source: Object property

Gets or sets an absolute or relative URL that identifies the location of the SWF or image file to load, the class name of a movie clip in the library, a reference to a display object, or a instance name of a movie clip on the same level as the component. The instance name is not accepted if sourceRenderAs is set to MovieClip.

Valid image file formats include GIF, PNG, and JPEG. To load an asset by using a URLRequest object, use the load() method.

The default value is: null

Implementation
public function get source():Object
public function set source(value:Object):void