If you want to ensure that the value of the attribute is in fact a type 
name in the schema, then xs:QName doesn't give you that.  Nothing does 
that with XML Schema validation.

xan

On May 11, 2004, at 3:57 PM, Ashok wrote:
> Hi..
>
> I want to know how to validate instance documents that
> has an attribute, and the value of the attribute is of
> form "prefix:value".
>
> To explain more clearly...
>
> I have an instance document:
>
> <Documents
>    xmlns:dd="http://test.uri.org"
>
> xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance"
>    xsi:schemaLocation="http://test.uri.org
>                        c:/document.xsd">
>
>    <document doctype="dd:PurchaseOrder"/>
>
> </Documents>
>
> How can I validate this document, such that the schema
> validator checks that value of doctype attribute,
> "PurchaseOrder" exists in namespace "dd" defined in
> "document.xsd" file? Do I have to define 'doctype'
> attribute differently in the schema?
>
> This is similar to how we define type attribute in
> standard XML schema:
> <xsd:element name="Catalog" type="xsd:string">
>
> Any pointers?
>
> Thanks
>
>
> 	
> 		
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From xan.gregg@j...  Wed May 12 14:47:43 2004
Return-Path: <xan.gregg@jmp.