name

Name of this form item variable to hold the input from the user. It must be unique within the form.

 type

To specify one of the built-in grammars. It can be boolean, currency, digits, date, phone, time or simply CDATA to include all the built-in grammars.

 expr

Contains the initial value of the variable declared. If not declared the variable has an undefined value. If the variable has a value then the instructions enclosed inside the field element are not executed.

cond

A boolean expression when evaluates to true, field elements are executed.

modal

A boolean expression when set true enables only the field grammar else enables all the active grammar. The default value is false. 

 slot

This is used for grammar which fills multiple fields to populate them.

parent

form

children

PCDATA, audio, catch, enumerate, error, filled, grammar, help, link, noinput, nomatch, option, prompt, property, value