Using XmlSerialization and TypeDescriptionProvider together

Question

I have a class that I've extended by defining a new TypeDescriptionProvider (this article describes pretty much what I've done). My implementation is slightly different in that it uses values from a database rather than fields to define the extended properties.

This all works fine.

What I now want to do is XML Serialize the class and include the extended properties in the output XML. Does anyone know if this can be done?

Thanks in advance.