Restrict CDATA value length in Schema

Hi all,

I have an XML file where all to elements for the data are contained in CDATA sections. I have a schema created that is working right now although it is pretty dumbed down. I have a need now to insert into the schema a restriction on the length of the values in the different elements.

The xml looks like this;

<DOC_CAT Attribute="Y"><![CDATA[AR]]></DOC_CAT>

The schema for this field currently looks like this;

<xs:element name="DOC_CAT">
<xs:complexType mixed="true">
<xs:attribute name="Attribute" use="required">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="Y"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:complexType>
</xs:element>

I have tried putting a maxLength parameter just above the enumeration parameter, but nothing happens when I validate the xml with a field value that is longer than the maxLength parameter. My suspicion is that the maxLength parameter is being applied to the attribute field instead of the cdata section.

How can I apply a length restriction against the value in the cdata section?

Thanks for your help,

Doug Harding
State of Utah
[1351 byte] By [Douha] at [2007-11-19 13:49:19]