Unknown elements are just ignored during deserialization

Question

When I deserialize an XML document with XmlTextReader, a textual element for which there is no corresponding class is simply ignored.

Note: this is

Answer 1

As I have found out by accident during further research, this problem is actually ridiculously easy to solve because...

...XmlSerializer supports events! All one has to do is to define an event handler for missing elements

void Serializer_UnknownElement(object sender, XmlElementEventArgs e)
{
    throw new Exception("Unknown element "+e.Element.Name+" found in "
        +e.ObjectBeingDeserialized.ToString()+" in line "
        +e.LineNumber+" at position "+e.LinePosition);
}

and register the event with XmlSerializer:

xmlSerializer.UnknownElement += Serializer_UnknownElement;

The topic is treated at MSDN, where one also learns that

By default, after calling the Deserialize method, the XmlSerializer ignores XML attributes of unknown types.

Not surprisingly, there are also events for missing attributes, nodes and objects.