Compare Properties automatically
- by juergen d
I want to get the names of all properties that changed for matching objects. I have these (simplified) classes:
public enum PersonType { Student, Professor, Employee }
class Person {
public string Name { get; set; }
public PersonType Type { get; set; }
}
class Student : Person {
public string MatriculationNumber { get; set; }
}
class Subject {
public string Name { get; set; }
public int WeeklyHours { get; set; }
}
class Professor : Person {
public List<Subject> Subjects { get; set; }
}
Now I want to get the objects where the Property values differ:
List<Person> oldPersonList = ...
List<Person> newPersonList = ...
List<Difference> = GetDifferences(oldPersonList, newPersonList);
public List<Difference> GetDifferences(List<Person> oldP, List<Person> newP) {
//how to check the properties without casting and checking
//for each type and individual property??
//can this be done with Reflection even in Lists??
}
In the end I would like to have a list of Differences like this:
class Difference {
public List<string> ChangedProperties { get; set; }
public Person NewPerson { get; set; }
public Person OldPerson { get; set; }
}
The ChangedProperties should contain the name of the changed properties.
