DALFactory/DataAccess.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using System.Reflection;

using CheckOnWork.IDAL;
using CheckOnWork.WebConfig;

namespace CheckOnWork.DALFactory
{
    public class DataAccess
    {
        private static readonly string path = WebConfig.Config.WebDal;

        public static ILogin CreateLogin()
        {
            string  className= path + ".LoginDAL";
            return (ILogin)Assembly.Load(path).CreateInstance(className);
        }

        public static  IManager CreateManager()
        {
            string className = path + ".ManagerDAL";
            return (IManager)Assembly.Load(path).CreateInstance(className);
        }

        public static IDepartment CreateDepartment()
        {
            string classname = path + ".DepartmentDAL";
            return (IDepartment)Assembly.Load(path).CreateInstance(classname);
        }

        public static IDean CreateDean()
        {
            string className = path+ ".DeanDAL";
            return (IDean)Assembly.Load(path).CreateInstance(className);
        }

        public static IStudent CreateStudent()
        {
            string classname = path + ".StudentDAL";
            return (IStudent)Assembly.Load(path).CreateInstance(classname);
        }

        public static ITeacher CreateTeacher()
        {
            string className = path + ".TeacherDAL";
            return (ITeacher)Assembly.Load(path).CreateInstance(className);
        }

        public static IAssistant CreateAssistant()
        {
            string className = path + ".AssistantDAL";
            return (IAssistant)Assembly.Load(path).CreateInstance(className);
        }

        public static ICourse CreateCourse()
        {