<mx:Model> tag implemented by the compiler

You use the <mx:Model> tag to declare a data model in MXML. An <mx:Model> tag is compiled into a tree of ActionScript objects; the leaves of the tree are scalar values.

MXML Syntax

You can place an <mx:Model> tag in a Flex application file, or in an MXML component file. The tag must have an id value. It cannot be the root tag of an MXML component. The <mx:Model> tag has the following syntax:

 <mx:Model id="modelID">
   model declaration
 </mx:Model> 

or:

 <mx:Model id="modelID" source="fileName" />

where source specifies an external source, such as a file, for the data model. The external source can contain static data and data binding expressions. The file referenced in a source property resides on the server and not on the client machine. The compiler reads the source value and compiles the source into the application; the source value is not read at runtime.

The model declaration, either in-line in the tag or in the source file, must have a single root node that contains all other nodes. You can use MXML binding expressions, such as {myForm.lastName.text} in the model declaration. This way you can bind the contents of form fields to a structured data representation.

In the following example, the myEmployee model is placed in an MXML application file:

	<?xml version="1.0"?>
	<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
	...
	  <mx:Model id="MyEmployee">
	    <root>
	        <name>
	           <first>Will</first>
	           <last>Tuckerman</last>
	        </name>
	        <department>Accounting</department>
	        <email>wtuckerman@wilsoncompany.com</email>
	    </root>
	  </mx:Model>
	...
	</mx:Application>