Flexible Web UI Workflow application through ASP.NET MVC & Windows Workflow Foundation

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Mvc.Ajax;
using WizardTypeUITwo.Models;

namespace WizardTypeUITwo.Controllers
{
    public class EmployeeController1 : Controller
    {

        public Employee employeeObj;
        //
        // GET: /Employee/

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



        public ActionResult Step1(string nextButton)
        {

            if ((nextButton != null) && ModelState.IsValid)
            {
                return RedirectToAction("Step2");
            }
            return View(employeeObj);
        }


        public ActionResult Step2(string backButton, string nextButton)
        {
            
           

            if (backButton != null)
                return RedirectToAction("Step1");
            else if ((nextButton != null) && ModelState.IsValid)
                return RedirectToAction("Step3");
            else
                return View(employeeObj);
        }

        public ActionResult Step3(string backButton, string nextButton)
        {

            if (backButton != null)
                return RedirectToAction("Step2");
            else if ((nextButton != null) && ModelState.IsValid)
                return RedirectToAction("Final");
            else
                return View(employeeObj);
        }




        protected override void OnActionExecuting(ActionExecutingContext filterContext)
        {

            employeeObj = (Employee)TempData["Employee"];
            if (employeeObj == null) employeeObj = new Employee();
            TryUpdateModel(employeeObj);

        }

        protected override void OnResultExecuted(ResultExecutedContext filterContext)
        {

                TempData["Employee"] = employeeObj;
        }

        public ActionResult Final()
        {
            
            return Content("Employee is registered successfully !");
            // Here , we can have the  persistence logic to either store the data 
            // in the database or to put it in a queue for an asynchronous processing
          
        }

    }
}