[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Schema constraint

• From: Tony.Coates@r...
• To: Phil Ruelle <philr@i...>
• Date: Fri, 06 Jul 2001 17:26:28 +0100

On 06/07/2001 16:32:36 Phil Ruelle wrote:

>Can anyone tell me if it's possible to write a constraint with XML
>Schema to enforce that for an element with two child elements at
>least one of them exists? (I thought this had been asked before but
>couldn't find it in the archives)

Have a look at the attached sample.  It's not ideal, but it works when what you need is "at least one of two".  (See attached file: at-least-one.zip)

     Cheers,
          Tony.
========
Anthony B. Coates
(1) Content Distribution Architect - Project Gazelle
(2) Leader of XML Architecture & Design - Chief Technology Office
Reuters Plc, London.
tony.coates@r...
========

-----------------------------------------------------------------
        Visit our Internet site at http://www.reuters.com

Any views expressed in this message are those of  the  individual
sender,  except  where  the sender specifically states them to be
the views of Reuters Ltd.

at-least-one.zip

• Follow-Ups:
  • Re: Schema constraint
    • From: Eric van der Vlist <vdv@d...>

• Prev by Date: Re: Schema constraint
• Next by Date: Re: filtering noise (was Re: SAX LexicalHandler::comment issue)
• Previous by thread: Re: Schema constraint
• Next by thread: Re: Schema constraint
• Index(es):
  • Date
  • Thread