ViewBag is returning NullReferenceException

Question

I have retrived a data list from database. The datalist works fine in controller class and does indeed have values in it but when I bind it with ViewBag.List and try to render it in view it give NullReferenceException. I have no idea why would it gives that exception.
ControllerClass

public ActionResult Index()
{ 
    var SomeList = Database.somelamdaexp.ToList();
    ViewBag.List = SomeList;
    return View();
}

View

@foreach(var item in ViewBag.List)
{
    <tr>
        <td>@item.Field1<td>
        <td>@item.Field2</td>
    </tr>
}

I would use another name for the list, like: ViewBag.MyList, List is a type. — Jcis, Apr 24 '20 at 06:21
Better avoid `ViewBag` if possible and pass the list as/with a model to the view. — Uwe Keim, Apr 24 '20 at 06:57
@UweKeim Yes turns out i was selecting datalist with some anonymous type in my lamdaexp and they are internal cannot be used in view. I created a modeview class and now it works. Thanks Everyone! — Blank Blank, Apr 24 '20 at 07:17
Possible duplicate of [Storing an Anonymous Object in ViewBag](https://stackoverflow.com/q/8980045/11683) — GSerg, Apr 24 '20 at 07:58

Hooman Bahreini · Answer 1 · 2020-04-24T07:14:55.087

1

Your the usage of ViewBag is correct, I cannot reproduce the problem, see this fiddle

The problem could be because Field1 or Field2 does not exist in your model, or the exception is thrown somewhere else in your code.

edited Apr 24 '20 at 07:14

answered Apr 24 '20 at 06:46

Hooman Bahreini

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Then it wouldn't be a NullReferenceException. – GSerg Apr 24 '20 at 06:59
@GSerg My bad i should have mentioned i have anonymous types in my lamda expression.Thanks for your time. – Blank Blank Apr 24 '20 at 07:23

ViewBag is returning NullReferenceException

1 Answers1