using System;   

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        List<Test> testList = new List<Test>();

        Test item1 = new Test(){

            TestField1 = 1,

            TestField2 = "testString"

        };

        Test item2 = new Test(){

            TestField1 = 1,

            TestField2 = "testString"

        };

        testList.Add(item1);

        testList.Add(item2);

        testList.Add(item1);

        testList.Add(item2);

        foreach(Test t in testList){

            Console.WriteLine("test int: " + t.TestField1 + ", test string: " + t.TestField2);

        }

        Console.WriteLine("--------");

        foreach(Test t in testList.Distinct()){

            Console.WriteLine("test int: " + t.TestField1 + ", test string: " + t.TestField2);

        }

    }

    public class Test{

        public int TestField1{get; set;}    

        public string TestField2{get;set;}

    }

}