using System;

using System.Reflection;

​

var p = new Person();

var p1 = p;

Console.WriteLine("Hashcode BEFORE property assignment: " + p.GetHashCode());

var pis = p.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);

foreach (var pi in pis)

{

    pi.SetValue(p, "f"); //this line creates and assign a new instance (record is immutable)

    Console.WriteLine($"Hashcode AFTER \'{pi.Name}\' property assignment: " + p.GetHashCode());

}

Console.WriteLine(object.ReferenceEquals(p, p1));

public record Person

{

    public string FirstName { get; set; }

​

    public string LastName { get; set; }

}