.NET XmlSerializer and multiple references to the same object

Question

My repository has List, List and List where an Enrolment has Enrolment.Student and Enrol

Answer 1

You can implement interface IXmlSerializable to Enrolment and in WriteXml method generate student and course XML which will contains only keys e.g.:

and in ReadXml method you can load references from this. You must also set XmlIgnore attribute to Student and Course property.