Skip Validation Property
The Skip Validation property is available for controls that can be clicked by the user and result in form submission to the server e.g. buttons, images, hyperlinks.
The property specifies that the system will omit all validation with the exception of field type validation (e.g. only numeric data is entered for numeric fields) for all fields on the page. This option is provided so that designers can add cancel or page back buttons which will be honoured immediately and will not display validation error messages such as mandatory fields missing etc.
CAUTION!: the use of this option can result in unvalidated data entering the system. Any data entered by the end user on the page is received by the system, but any configured validation may have been bypassed. The application should not rely on the integrity of any field values entered in this way.