Why does copy of the List still change properties in the original List using C#

Question

Lets say I have this class

public class Employee
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public bool isActive {          


        

Answer 1

because by using new List(Employees); will give you the new instance of List but not the objects contained in the list. You should consider cloning of objects contained in the list also , use Binary Serialization to serialize object graph.