RE: Howto: Enforce unique attribute

Ashok,

Thanks for the quick reply,

> You can define the attribute as a key and the system
> Will check whether it is unique.

How do I do that?, I had tried changing the number to an ID, a NMTOKEN and a
KEY, I just got errors:

<xsd:attribute name="Number" type="xsd:key" use="required"/>

gives:

<schemaError char='18' line='123' phase='instance'
resource='file:/C:/Work/XML/config.xsd'>Undefined
type xsd{http://www.w3.org/2000/10/XMLSchema}:key
referenced as type definition of {None}Number
</schemaError>

I must be missing something in the grammar, I miss those little syntax
diagrams you used to get with Turbo Pascal :)

TIA

Chris


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