Submit forms without submit buttons [G13]

Test info

Test for Success Criterion 3.2.2

About

Checked Elements: forms without submit buttons

This test checks, if the submission of forms without submit buttons is accessible and predictable.

Short Description

It is necessary to provide a submit button for forms with multiple controls or forms containing other controls than radio buttons, checkboxes or select boxes. If such forms don't have a submit button, changes to controls may lead to unintended submissions and it is difficult to impossible for people using assistive technologies to submit the form.

http://www.w3.org/TR/2010/NOTE-UNDERSTANDING-WCAG20-20101014/consistent-behavior-unpredictable-change.html

How to Repair

Add a submit button (input type="submit", input type="image", or button type="submit") to the form.
Make sure that the action specified for the form performs the desired action. Also make sure, that any changes to form elements within the form do not cause a change of context or that any such changes are described before the initiating control.

WCAG 2.0

Principle 3: Understandable

Information and the operation of user interface must be understandable.
WCAG 2.0: Principle 3

Guideline 3.3: Input Assistance

Help users avoid and correct mistakes. Understanding Guideline 3.3

Success Criterion 3.2.2: On Input (Level A)

Changing the setting of any user interface component does not automatically cause a change of context unless the user has been advised of the behavior before using the component.
Understanding: Success Criterion 3.2.2

Techniques

G13 - Describing what will happen before a change to a form control that causes a change of context to occur is made

Possible Results

The form can not be submitted accessibly: A submit button is missing.
Please check that a change of context is described: Human input is necessary to verify, that a change of context is described prior to the initiating form control.
Please check that a change of context, initiated within or by the form, is described: Human input is necessary to verify, that the change of context is described prior to the form or initiating form control.