Hi Paul,

Use a choice
(success,failure)|(failure,success)

in XML Schema:

<xsd:choice>
   <xsd:sequence>
     <xsd:element ref="tasklist:success"/>
     <xsd:element ref="tasklist:failure"/>
   </xsd:sequence>
   <xsd:sequence>
     <xsd:element ref="tasklist:failure"/>
     <xsd:element ref="tasklist:success"/>
   </xsd:sequence>
</xsd:choice>

Best Regards,
George
---------------------------------------------------------------------
George Cristian Bina - http://aboutxml.blogspot.com/
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
www.---.com


Paul Stepowski wrote:
> Dennis Sterzenbach wrote:
>> Hi Paul!
>>
>> Paul Stepowski wrote:
>> <snip />
>>>   <xsd:element name="task">
>>>     <xsd:complexType>
>>>       <xsd:sequence>
>>>         <xsd:element ref="tasklist:prerequisites" minOccurs="0"
>>>           maxOccurs="1" />
>>>         <xsd:all>
>>>           <xsd:element ref="tasklist:success" minOccurs="1"
>>>             maxOccurs="1" />
>>>           <xsd:element ref="tasklist:failure" minOccurs="1"
>>>             maxOccurs="1" />
>>>         </xsd:all>
>>>       </xsd:sequence>
>>>       <xsd:attribute name="id" type="xsd:string" use="required" />
>>>     </xsd:complexType>
>>>   </xsd:element>
>> <snip />
>>> "The content of 'sequence' must match (annotation?, (element | group | choice |
>>> sequence | any)*). A problem was found starting at: all."
>>>
>>> According to the w3c, all is a valid tag.  Can anyone shed some light on this error?
>> These are valid tags, but unfortunately not in that order.
>> As far as I know you can't use <xsd:all> inside a sequence:
>>
>> "Parent elements: group, complexType, restriction (both simpleContent
>> and complexContent), extension (both simpleContent and complexContent)"
>>
>> Best regards
>> -- Dennis Sterzenbach
> 
> Thanks Dennis,
> 
> My next question is then, can I achieve the same effect with a different syntax?
>  I need to specify <success> AND <failure> both occuring once each (in any
> order).
> 
> Thanks,
> 
> Paul
> 
> _______________________________________________________________________
> 
> XML-DEV is a publicly archived, unmoderated list hosted by OASIS
> to support XML implementation and development. To minimize
> spam in the archives, you must subscribe before posting.
> 
> [Un]Subscribe/change address: http://www.oasis-open.org/mlmanage/
> Or unsubscribe: xml-dev-unsubscribe@l...
> subscribe: xml-dev-subscribe@l...
> List archive: http://lists.xml.org/archives/xml-dev/
> List Guidelines: http://www.oasis-open.org/maillists/guidelines.php
>