Entity framework with business layer and data access layer

Question

Hello Everyone,

 

I have model.edmx file, DataAccessLayer, BussinessLayer and MVC. I have done DAL layer .dll referred inside BAL layer. How can I connect with each other without using AUTOMAPPER ?

 

DAL, 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DAL.Model;

namespace DAL
{
    public class ProductCategoryDAL
    {
        public List<AccessHistory> SelectAccessHistory(int idAccessHistory)
        {
            using (var context = new REBOXEntities())
            {
                if (idAccessHistory > 0)
                    return context.AccessHistories.Where(s => s.idAccessHistory == idAccessHistory).ToList();
                else
                    return context.AccessHistories.ToList();
            }
        }
    }
}

 

 

BAL,

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DAL;
using DAL.Model;

namespace BAL
{
    public class ProductCategoryBAL
    {
        ProductCategoryDAL productCategoryDAL = new ProductCategoryDAL();
        public List<BAL.Model.AccessHistory> SelectAccessHistory(int idAccessHistory)
        {
            try
            {
                List < BAL.Model.AccessHistory > objBALAccessHistory = productCategoryDAL.SelectAccessHistory(idAccessHistory).ToList(); /*Here occuring error*/
                return objBALAccessHistory;
            }
            catch (Exception ee)
            {
                throw ee;
            }
        }
    }
}