Null reference error "Object reference not set to an instance of an object" accessing Model while loading a view

Question

@model IEnumerable<SportsStore.Domain.Entities.Product>.....this is my view List.cshtml

@{
    ViewBag.Title = "Products";
}
@foreach (var j in Model) //getting error at Model
{ 
    <div class="item">
        <h3>@j.Name</h3>
        @j.Description
        <h4>@j.Price.ToString("C")</h4>
    </div>
}

the sportstore example in pro Asp.Net MVC3 book chapter 7 before the part where i can prepare a database

this is my controller

 public class ProductController : Controller
    {
        public ProductController()
        { 
        }
        //
        // GET: /Product/
        private IProductRepository repository;
        public ProductController(IProductRepository productrepository)
        {
            repository=productrepository;
        }
        public ViewResult List()
        {
            return View();
        }

Thank you neontapir but how am i supposed to deal with this pls help i am new to ASP.Net MVC — Jithesh Chandra
– Jithesh Chandra, Commented Jun 21, 2013 at 9:07

Sirwan Afifi · Accepted Answer · 2013-06-20 18:05:47Z

1

when you pass IEnumerable you should pass it as List or something like that, for example your Index Action Method should be like :

public ActionResult Index()
{
  return View(_dbContext.Product.ToList());
}

answered Jun 20, 2013 at 18:05

Sirwan Afifi

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Comments

Iti Tyagi · Accepted Answer · 2013-06-20 17:01:41Z

0

You need to initialize the Model I suppose, just like we do in C#: Suppose we have a class, then we initialize the same like:

Model m1= new Model();

Make sure you check the null also for all items you are passing.

answered Jun 20, 2013 at 17:01

Iti Tyagi

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5 Comments

neontapir Over a year ago

This is likely the correct explanation. If you use View() to return your view, Model is null. You'd want to use the View(model) overload to provide a model object.

Bhushan Firake Over a year ago

@neontapir @model IEnumerable<SportsStore.Domain.Entities.Product> is Model isn't it?

Romias Over a year ago

Yes... but if you don't pass it in the View() call... you end up with a null model.

neontapir Over a year ago

Correct, @model defines the type of the model, but not an instance of its current value.

Jithesh Chandra Over a year ago

Yes the error i am getting is that the model is null ..it is not initialized .. i am quite new to ASP.NetMvc pls help guys

Davlatbek Isroilov · Accepted Answer · 2013-07-24 12:17:49Z

0

In the EFDbContext class i inherited DbConntext and that worked for me, hope it'll help you too:

using SportsStore.Domain.Entities;
using System.Data.Entity;

namespace SportsStore.Domain.Concrete
{
public class EFDbContext : DbContext
    {
        public DbSet<Product> Products { get; set; }
    }
}

answered Jul 24, 2013 at 12:17

Davlatbek Isroilov

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