UserController.cs(Controller)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using OT_lib.Interfaces;
using OT_lib.BusinessLayer;
using OT_lib.Entity;
using OverTime.Models;
using PagedList;


namespace OverTime.Controllers
{
    public class UserController : Controller {

        [HttpGet]
        public ActionResult Pagination(int? page)
        {
            var dummyItems = Enumerable.Range(1, 150).Select(x => "Items" + x);
            var pager = new Pager(dummyItems.Count(), page);

            var viewModel = new UserModel()
            {
                Items = dummyItems.Skip((pager.CurrentPage - 1) * pager.PageSize).Take(pager.PageSize),
                Pager = pager
            };

            return View(viewModel);
        }

        public ActionResult List(UserModel usermodel)
        {
            //UserBusinessLayer userService = new UserBusinessLayer("sqlconn");

            IUserInterface userService = new UserBusinessLayer("sqlConn");
            List<UserEntity> list = userService.GetAllUsers();
            List<UserModel> listModel = new List<UserModel>();

            foreach (var item in list)
            {
                listModel.Add(new UserModel()
                {
                    email = item.email,
                    password = item.password,
                    username = item.username,
                    usr_Id = item.usr_Id

                });
            }
            return View(listModel);
        }

        public ActionResult CreateUser()
        {
            return View();
        }

        [HttpPost]
        public ActionResult CreateUser(UserModel userModel)
        {
            //UserBusinessLayer userService = new UserBusinessLayer("sqlConn");

            IUserInterface userService = new UserBusinessLayer("sqlConn");

            userService.CreateUser(new UserEntity()
            {
                username = userModel.username,
                email = userModel.email,
                password = userModel.password
            });

            return RedirectToAction("List");
        }

        public ActionResult EditUser(int id)
        {
            //UserBusinessLayer userService = new UserBusinessLayer("sqlconn");

            IUserInterface userService = new UserBusinessLayer("sqlConn");

            UserModel userModel = new UserModel();

            try
            {
                UserEntity userEntity = userService.GetUserId(id);

                userModel.usr_Id = userEntity.usr_Id;
                userModel.email = userEntity.email;
                userModel.username = userEntity.username;
                userModel.password = userEntity.password;
            }
            catch (Exception ex)
            {
                throw ex;
            }

            return View(userModel);
        }

         //Update user info
        [HttpPost]
        public ActionResult EditUser(UserModel userModel)
        {
            //UserBusinessLayer userService = new UserBusinessLayer("sqlConn");

            IUserInterface userService = new UserBusinessLayer("sqlConn");

            userService.EditUser(new UserEntity()
            {
                   usr_Id = userModel.usr_Id,
                   username = userModel.username,
                   email = userModel.email,
                   password = userModel.password
            });

            return RedirectToAction("List");
        }

        public ActionResult DeleteUser(int id)
        {
            //UserBusinessLayer userService = new UserBusinessLayer("sqlconn");
            IUserInterface userService = new UserBusinessLayer("sqlConn");

            UserModel userModel = new UserModel();

            try
            {
                UserEntity userEntity = userService.GetUserId(id);

                userModel.usr_Id = userEntity.usr_Id;
                userModel.email = userEntity.email;
                userModel.username = userEntity.username;
                userModel.password = userEntity.password;
            }
            catch (Exception ex)
            {
                throw ex;
            }

            return View(userModel);
        }

        [HttpPost, ActionName("DeleteUser")]
        public ActionResult DeleteUserConfirmed(int id)
        {
            //UserBusinessLayer userService = new UserBusinessLayer("sqlconn");
            IUserInterface userService = new UserBusinessLayer("sqlConn");

            try
            {
                userService.DeleteUser(id);
            }
            catch (Exception eDelete)
            {
                throw eDelete;
            }

            return RedirectToAction("List");
        }

        public ActionResult Details(int id)
        {
            //UserBusinessLayer userService = new UserBusinessLayer("sqlconn");
            IUserInterface userService = new UserBusinessLayer("sqlConn");

            UserModel userModel = new UserModel();

            try
            {
                UserEntity userEntity = userService.GetUserId(id);

                userModel.usr_Id = userEntity.usr_Id;
                userModel.email = userEntity.email;
                userModel.username = userEntity.username;
                userModel.password = userEntity.password;

            }
            catch (Exception ex)
            {
                throw ex;
            }

            return View(userModel);
        }
    }
}