Is there a way to make the following:

1. we have a webmethod, that should return an xml doent that is valid
respect an XmlSchema.
2. the web method is like the following:

public XmlNode MyMethod ( ... param-list ...) {
... build xml-doent that respect the XmlSchema
... return xml_doc;

3. When viewing the generated WSDL , we see only a general return type, not
the Xml Schema.

How instruct the .net system, to consider the return value from the
webmethod-call, as exactly
compliant or valid, to the giveng XmlSchema ?

Thanks for any help.