- From: Hoylen Sue <hoylen@dstc.edu.au>
- Date: 07 Jun 2004 16:49:24 +1000
- To: www-forms-editor@w3.org
A suggestion for future versions of XForms: allowing the cause of an instance being invalid to be identified so that more meaningful error messages can be displayed. Curently, one only knows whether the instance is valid or invalid. There seems to be no way to identify what model item property was violated to case it to become invalid. This makes it very difficult to create usable forms which display useful error messages to help the user fix the problem. For example, an element might be a required integer that has a constraint that it must be greater than 42. Depending on what the user has entered, different error messages can be shown: "this field is required, please enter a value," "incorrect format for a number," "the number you have entered is not greater then 42." Currently, the best you can do is to have a single error message: "this field is missing a number greater than 42." Hoylen -- ______________________________________________ Dr Hoylen Sue h.sue@dstc.edu.au http://www.dstc.edu.au/ DSTC Pty Ltd +61 7 3365 4310
Received on Monday, 7 June 2004 02:49:53 UTC