CSharp9RecordAndWith.cs

CSharp9RecordAndWith.cs

using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Security.Cryptography.X509Certificates;

namespace ConsoleApp3
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("start");

            var bruno = new PersonRecord("Bruno", 40, true);
            Console.WriteLine($"{bruno.ToString()}");
            Console.WriteLine($"Bruno Is Married created");
            var brunoMarried = bruno.CopyUsingMarriedTrue();
            Console.WriteLine($"{brunoMarried }");

            Console.WriteLine($"-----------------------------------");
            var valentino = new PersonRecord("Valentino", 13, false);
            Console.WriteLine($"{valentino.ToString()}");
            Console.WriteLine($"Valentino Is Married created");
            var valentinoMarried = valentino.CopyUsingMarriedTrue();
            Console.WriteLine($"{valentinoMarried}");
        }

    }

    public record PersonRecord(string Name, int Age, bool Married = false)
    {
        public Guid Id { get; init; } = Guid.NewGuid();
        public override string ToString() => $"Name: {Name} - Age: {Age} - Married: {Married} - Guid: {Id}";

        public PersonRecord CopyUsingMarriedTrue() => this with { Married = true };
    }
}