Re: restrict content to values out of a xml file

hi,
thanx for the answer! 
how can put that XIncludes thing into the enumeration? i couldn´t find any
examples in the net.
i have a structure like this, now what do i have to write into the
enumeration tags?:

<xs:element name="bla">
     <xs:simpleType>
         <xs:restriction base="xs:string">
                <xs:enumeration value="???"/>
          </xs:restriction>
     </xs:simpleType>
</xs:element>