[Widget Role] Hidden [Inherited Concepts] Input [Base and Related Concepts] [HTML] input (type : hidden) [Inherited states] Disable zoom [nameRef] Title [Description] 
A form control that is never displayed to the user, but is always submitted to the server with the form. NOTE: In XForms, unless bound to form controls, instance data nodes are not presented to the user; consequently, there is no need for a form control corresponding to [HTML] input type="hidden".