[xsd-users] Complex type with mixed content

[Barrie Kovish]

I've run into a case where complex mixed content is causing us some problems.  I'm hoping there might be a somewhat simpler solution than having to implement a type by hand.  In our case the complex mixed type is always either a simple string or a complex type but never mixed.  It is however declared in the schema as complex, mixed.  Here is an example of what I am talking about.  The following would be 2 examples of valid XML:

Here is an example of the simple case:
<sample>
    2000 
</sample>

Here is an example of a complex case:
<sample>
     <freq>
         20
     </freq>
     <phase>
         2.17
     </phase>
</sample>

The XSD definition looks like:

<xs:element name='sample'>
    <xs:complexType mixed='true'>
        <xs:choice minOccurs='0' maxOccurs='unbounded'>
            <xs:element ref='freq'/>
            <xs:element ref='phase'/>
        </xs:choice>
    </xs:complexType>
</xs:element>

Also we don't actually use any of the content of the <sample> element.  However we do need to preserve it between reading in the XML file modifying the XML and then writing it out.
Is there a simpler solution than implementing a custom type by had?

Thanks,

Barrie Kovish