Compare two lists of object for new, changed, updated on a specific property

Question

I\'ve been trying and failing for a while to find a solution to compare to lists of objects based on a property of the objects. I\'ve read other similar solutions but they w

Answer 1

Simple Linq

New

List toBeAdded = compareList.Where(c=>c.Id==0).ToList();

To be deleted

List toBeDeleted = masterList.Where(c => !compareList.Any(d => c.Id == d.Id)).ToList();

To be updated

List toBeUpdated = masterList.Where(c => compareList.Any(d => c.Id == d.Id)).ToList();