I have a following XML:
John
You'll need to indicate which namespaces each field requires by using Namespace of XmlElement attribute. This will allow you to associate a field with a particular namespace, but you'll also need to expose a property on your class that returns type XmlNamespaceDeclarations in order to get the prefix association.
See documentation and sample below:
[XmlRoot(ElementName = "person")]
public class Person
{
[XmlElement(Namespace = "http://example.com")]
public string fname;
[XmlElement(Namespace = "http://sample.com")]
public string lname;
[XmlNamespaceDeclarations]
public XmlSerializerNamespaces xmlns = new XmlSerializerNamespaces();
public Person()
{
xmlns.Add("a", "http://example.com");
xmlns.Add("b", "http://sample.com");
}
}