unique element field as element?

[Mike]

I have a dataset that I need to validate. Here an example similar to what I
need to do:

<Company>
<Employee>
<Name>...</Name>
<EmployeeID>1234</EmployeeID>
</Employee>
<Employee>
<Name>...</Name>
<EmployeeID>1235</EmployeeID>
</Employee>
</Company>

In the schema, I want to say:

<xsd:unique name="uniqueEmployeeID">
<xsd:selector xpath="Employee"/>
<xsd:field xpath="EmployeeID"/>
</xsd:unique>

For some reason, it doesn't work. I know the normal case is to specify the
field as an attribute, which I *can't* do.

Thanks.

 

[Mike]

I fixed my own problem -- had defined that unique element one level too
deep.