FlexTextField is a subclass of the Player's TextField class
and the superclass of UITextField.
It overrides the toString() method
to return a string indicating the location of the object
within the hierarchy of DisplayObjects in the application.
Returns a string indicating the location of this object
within the hierarchy of DisplayObjects in the Application.
This string, such as "MyApp0.HBox5.UITextField18",
is built by the displayObjectToString() method
of the mx.utils.NameUtils class from the name
property of the object and its ancestors.
Returns
String — A String indicating the location of this object
within the DisplayObject hierarchy.