1.2.4.ViewModel

• Why need ViewModel?

  • It's a model specifically built for a view

• To establish multiple model's relation, we can use ViewModel to do that

  • 1.Create a folder which is called ViewModel

  • 2.Create a ViewModel class which contains models

          using System;
          using System.Collections.Generic;
          using System.Linq;
          using System.Web;
          using Vidly2.Models;
          namespace Vidly2.ViewModels
          {
              public class RandomMovieViewModel
              {
                  public Movie Movie { get; set; }
                  public List<Customer> Customers { get; set; }
              }
          }

  • 3.Modify controller

        using System.Web;
        using System.Web.Mvc;
        using Vidly2.Models;
        using Vidly2.ViewModels;
        namespace Vidly2.Controllers
        {
            public class MoviesController : Controller
            {

                // GET: Movies/Random
                public ActionResult Random()
                {
                    var movie = new Movie() { Name = "Shrek" };
                    var customers = new List<Customer>
                    {
                        new Customer {Name = "Customer 1"},
                        new Customer {Name = "Customer 2"}
                    };

                    var viewModel = new RandomMovieViewModel
                    {
                        Movie = movie,
                        Customers = customers
                    };

                    return View(viewModel);
                }
            }
        }

• 4.Modify View

@model Vidly2.ViewModels.RandomMovieViewModel
    @{
        ViewBag.Title = "Random";
        Layout = "~/Views/Shared/_Layout.cshtml";
    }

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