using System;

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        List<test> list1 = new List<test>();

        List<test> list2 = new List<test>();

        list1.Add(new test { abc = "A"} );

        list1.Add(new test { abc = "B"} );

​

        list2.Add(new test { abc = "A"} );

        list2.Add(new test { abc = "B"} );

        var firstNotSecond = list2.Intersect(list1).ToList();

        var secondNotFirst = list1.Intersect(list2).ToList();

        Console.WriteLine(firstNotSecond.Count);

        Console.WriteLine(secondNotFirst.Count);

        if(list1==list2)

        {

            Console.WriteLine("Match");

        }

    }

}

​

public class test

{

    public string abc {get; set;}

}