Martin Honnen <mahotrash@y...> wrote in message news:<410ba394@o...>...
> David Norman wrote:
> 
> > How can I create an xml schema where both of the following documents
> > are valid?
> > 
> >   <theElement>
> >     <child>some text</child>
> >   </theElement>
> > 
> > and
> > 
> >   <theElement>1234</theElement>
> > 
> > Basically, <theElement> should either contain a single element <child>
> > of a specified type or an integer.
> 
> 
> If you use
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
>    version="1.0">
> 
> <xs:element name="root">
>    <xs:complexType>
>      <xs:sequence>
>        <xs:element ref="theElement" maxOccurs="unbounded" />
>      </xs:sequence>
>    </xs:complexType>
> </xs:element>
> 
> <xs:element name="theElement">
>    <xs:complexType mixed="true">
>      <xs:sequence>
>        <xs:element name="child" type="xs:string" minOccurs="0" />
>      </xs:sequence>
>    </xs:complexType>
> </xs:element>
> 
> </xs:schema>
> 
> that is you specify the element to have a complex type where mixed 
> content is allowed then the following validates:
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <root
>    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>    xsi:noNamespaceSchemaLocation="test2004073101Xsd.xml">
>    <theElement>
>      <child>some text</child>
>    </theElement>
>    <theElement>1234</theElement>
> </root>
> 
> However the schema also allows a <theElement> as follows
>    <theElement>1234<child>Kibology</child>1234</theElement>
> 
> If you want to allow either the simple content of type integer or a 
> complex content of exactly one child element you would need to have a 
> union of both types however I think a union is only possible for simple 
> types.

Because of the last possibility, mixed="true" doesn't give me what I want.

Thanks,
David