Adobe® Flex® 4 Language Reference (Flex 4)

This section describes the tags that are available in MXML only. The Flex MXML compiler implements these tags; therefore, they are not available in ActionScript.

	Tag	Description
	fx:Binding	You use the <fx:Binding> tag to tie the data in one object to another object.
	fx:Component	You use the <fx:Component> tag to define an inline cell renderer or cell editor in an MXML file.
	fx:Declarations	You use the <fx:Declarations> tag to declare non-default, non-visual properties of the current class.
	fx:Definition	You use the <fx:Definition> tag inside a <fx:Library> tag to define graphical children that you can then use in other parts of the application.
	fx:DesignLayer	You use the <fx:DesignLayer> tag is for internal use only.
	fx:Library	You use the <fx:Library> tag to define zero or more named graphic <fx:Definition> children.
	fx:Metadata	You use the <fx:Metadata> tag to insert metadata tags in an MXML file.
	fx:Model	You use the <fx:Model> tag to declare a data model in MXML.
	fx:Private	You use the <fx:Private> tag to provide meta information about the MXML or FXG document.
	fx:Reparent	You use the <fx:Reparent> tag to change the parent container of a component as part of a change of view state.
	fx:Script	You use the <fx:Script> tag to define blocks of ActionScript code.
	fx:Style	You use the <fx:Style> tag to define styles that apply to the current document and its children.
	fx:XML	You can declare an XML format data model in MXML in an <fx:XML> tag.
	fx:XMLList	You can create an E4X XMLList object from a text-format model in MXML in an <fx:XMLList> tag.