C# Linq将元素从一个list<custom>添加到另一个Linq，比较它们并更改值

using System;
using System.Collections.Generic;
using System.Linq;

public class Custom
{
    public int Id { get; set; }
    public string Name { get; set; }
}

public class Program
{
    public static void Main()
    {
        List<Custom> sourceList = new List<Custom>
        {
            new Custom { Id = 1, Name = "A" },
            new Custom { Id = 2, Name = "B" },
            new Custom { Id = 3, Name = "C" }
        };

        List<Custom> targetList = new List<Custom>
        {
            new Custom { Id = 1, Name = "X" },
            new Custom { Id = 2, Name = "Y" },
            new Custom { Id = 3, Name = "Z" }
        };

        var result = sourceList.Join(targetList,
                                     source => source.Id,
                                     target => target.Id,
                                     (source, target) =>
                                     {
                                         source.Name = target.Name;
                                         return source;
                                     })
                              .ToList();

        foreach (var item in result)
        {
            Console.WriteLine($"Id: {item.Id}, Name: {item.Name}");
        }
    }
}