"Henry S. Thompson" wrote:

>  Correct analysis.  Schema _slightly_ buggy -- remember XPath does not
>  utilise the default namespace declaration.

Ah, thank you. That was an important piece of information I've completely missed
out on.

Cheers,
/Eddie

>  > <?xml version="1.0" encoding="UTF-8"?>
>  > <xsd:schema xmlns:xsd="http://www.w3.org/2000/10/XMLSchema"
>  > elementFormDefault="qualified" targetNamespace="www.allette.com.au/keyref"
>  > xmlns="www.allette.com.au/keyref">
> 
>    xmlns="www.allette.com.au/keyref" xmlns:r="www.allette.com.au/keyref">
> 
>  >  <xsd:element name="Project">
>  >   <xsd:complexType>
>  >    <xsd:sequence>
>  >     <xsd:element ref="Item1" minOccurs="0"/>
>  >     <xsd:element ref="Item2" minOccurs="0"/>
>  >    </xsd:sequence>
>  >   </xsd:complexType>
>  >   <xsd:key name="Item1Key">
>  >    <xsd:selector xpath="Item1"/>
> 
>       <xsd:selector xpath="r:Item1"/>
> 
>  >    <xsd:field xpath="@Item1_2"/>
>  >   </xsd:key>
>  >   <xsd:keyref name="Item2_KeyRef" refer="Item1Key">
>  >    <xsd:selector xpath ="Item2"/>
> 
>       <xsd:selector xpath ="r:Item2"/>
> 
>  >    <xsd:field xpath ="@Item2_2"/>
>  >   </xsd:keyref>
>  >  </xsd:element>
> 
>  With these changes this validates the example and catches errors if
>  you add them.
> 
>  ht
>  --
>    Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
>            W3C Fellow 1999--2001, part-time member of W3C Team
>       2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
>              Fax: (44) 131 650-4587, e-mail: ht@[...].uk
>                       URL: http://www.ltg.ed.ac.uk/~ht/