using System;

​

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

​

        var sent = new List<Sent>()

        {

            new Sent { Address = "04004C", Data = "55AA55" },

            new Sent { Address = "040004", Data = "0720" },             

            new Sent { Address = "040037", Data = "31" },               

            new Sent { Address = "04004A", Data = "FFFF" }

        };

​

​

        var res = new List<Result> () {

            new Result { AddressOK = "04004C", DataOK = "55AA55" },

            new Result { AddressOK = "040004", DataOK = "0721" },               

            new Result { AddressOK = "040038 ", DataOK = "31" },                

            new Result { AddressOK = "04004A", DataOK = "FFFF" }

​

        };

​

        var diff =

            sent.Where (s => !res.Any (r => s.Address == r.AddressOK && s.Data == r.DataOK ));

        foreach (var item in diff) {

            Console.WriteLine("{0} {1}", item.Address, item.Data);

        }

        diff.Dump();

​

    }

}

​

​

public class Sent

{

    public string Address;

    public string Data;

}

​

​

public class Result

{

    public string AddressOK;

    public string DataOK;

}

​

​