Question

I am able to serialize a single type/class but is there a way that I can serialize it base class too?

For example:

class B:A

Here I am able to serialize class B but how can I serialize class A ?

Answer 1

A must know in advance, i.e.

[XmlInclude(typeof(B))]
public class A {...}


public class B {...}

Now a new XmlSerializer(typeof(A)) can serialize an A or a B. You can also do this without attributes by passing in a extraTypes parameter to the overloaded XmlSerializer constructor, but again – the root should be A; i.e. new XmlSeralializer(typeof(A), new[] {typeof(B)})