using System;

using System.Linq;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        List<AnswerModel> Answers = new List<AnswerModel>();

        AnswerModel vm1 = new AnswerModel();

        vm1.Answerid = 1;

        vm1.Questionid=1;

        vm1.AnswerCount =  10;

        vm1.Answer= "Yes";

        Answers.Add(vm1);

        AnswerModel vm2 = new AnswerModel();

        vm2.Answerid = 2;

        vm2.Questionid=1;

        vm2.AnswerCount =  5;

        vm2.Answer= "No";

        Answers.Add(vm2);

        AnswerModel vm3 = new AnswerModel();

        vm2.Answerid = 2;

        vm2.Questionid=1;

        vm2.AnswerCount =  5;

        vm2.Answer= "Not Sure";

        Answers.Add(vm3);

        var groupedAnswers = Answers

                .GroupBy(u => new {u.Questionid, u.Answer})

                    .Select(g =>

                    new ViewModelAnswer{

                        //AnswerTotalYesNo= 

                    }

             ).ToList();

​

    }

    public class AnswerModel

    {

        public int Answerid { get; set; }

        public int Questionid { get; set; }

        public string Answer { get; set; }

        public int AnswerCount { get; set; }

    }

    public class ViewModelAnswer

    {

        public int Questionid { get; set; }

        public int AnswerTotalYesNo { get; set; }

    }

}