• From: Roger L Costello <costello@m...>
• To: "xml-dev@l..." <xml-dev@l...>
• Date: Tue, 1 Mar 2022 23:32:33 +0000

Hi Folks,

DTD only allows attributes to be of type ID and IDREF.

XML Schema allows both attributes and elements to be of type ID and IDREF. Why? Is there a compelling use case for declaring an element to be of type ID? Is there a compelling use case for declaring an element to be of type IDREF?

/Roger

• Follow-Ups:
  • Re: DTDs don't have ID or IDREF elements so why does XMLSchema?
    • From: Michael Kay <mike@s...>