How to not serialize an object based on a property's value?

Question

If the tags didn\'t give it away, I\'m working with C#\'s XmlSerializer class.

Say, for example, I have a Person class with various properties including age (int), name

Answer 1

If you have a list of Person objects and only want to serialise some of them, then just filter out the ones you don't need. For example:

List people = GetPeople(); //from somewhere
List filteredPeople = people.Where(p => !p.Deceased);

Now you only need to serialise filteredPeople.