I developed a schema that uses the following for schema settings:

elementFormDefault="qualified"
xmlns:at=http://www.mycompany.com
targetNamespace="http://www.mycompany.com"

The goal is to namespace the my elements with "at" - example is
at:myElementName.

I use xsd to build a class. I then use the class to add data and then use
the XmlSerializer to serialize the class. When I look at the Xml stream
generated from the serialization, I do not see my target name space prefixed
to the elements.

How can I serialize and get the target namespace to appear on the Xml stream
correctly?