Displaying a list of strings in ASP.NET

Question

I'm currently making some exercises regarding displaying some tables in ASP.NET application. I Have following model class:

public class DynamoDB
{
    public IEnumerable<string> GetOsman { get; set; }
}

and controller class:

public class DynamoController : Controller
{

    // --- THIS PART IS UPDATED ---
    public ActionResult Index()
    {
        DynamoDB model = new DynamoDB();
        model.GetOsman = LoadAI();
        return View(model);
    }

    public List<string> LoadAI()
    {
        List<string> list = new List<string>();
        list.Add("Testing");
        list.Add("MCV");
        list.Add("Project");
        return list;
    }
}

and finally my Razor file:

@{
ViewBag.Title = "Home Page";
}

@model FinalApplication.Models.DynamoDB

<div class="jumbotron">
    <h1>Home Monitoring Application</h1>
</div>


@foreach (var item in Model.GetOsman)
{
    <text>
        @item
    </text>
}

But it still returns the error "Object reference not set to an instance of an object" at following line:

@foreach (var item in Model.GetOsman)

I made a similar post yesterday, since I got the same error when I was accessing the data from a DynamoDB table, but I'm getting the same error even with this simple example. My solution explorer look like this:

enter image description here

if you pass into view the model you have just to iterate to it, @foreach (var item in Model) — invernomuto
– invernomuto, Commented Dec 10, 2014 at 13:22
Change return View(model.GetOsman); to return View(model); You need to send the complete model. — Max
– Max, Commented Dec 10, 2014 at 13:22
I'm still getting the same error even though I have modified to return View(model); — Osman Esen
– Osman Esen, Commented Dec 10, 2014 at 14:28

Vsevolod Goloviznin · Accepted Answer · 2014-12-10 15:36:22Z

3

You should pass your model to the view, not model.GetOsman.

return View(model);

Also, create Dynamo folder under Views and include Index.cshtml there.

edited Dec 10, 2014 at 15:36

answered Dec 10, 2014 at 13:22

Vsevolod Goloviznin

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2 Comments

Osman Esen Over a year ago

Yes and I still can't figure out why. From the picture above, I have an Index.cshtml file in both "Home" and "Status" folder. That might be the cause of the issue perhaps ?

Vsevolod Goloviznin Over a year ago

Try creating Dynamo folder and putting and Index.cshtml there

JLRishe · Accepted Answer · 2014-12-10 13:22:42Z

3

The object that you're passing to View() is model.GetOsman instead of model.

Do this:

return View(model);

answered Dec 10, 2014 at 13:22

JLRishe

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Comments

fly_ua · Accepted Answer · 2014-12-10 13:23:19Z

0

Seems your view expects DynamoDB model, but you are passing

 return View(model.GetOsman);

Try passing model to your view

 return View(model);

answered Dec 10, 2014 at 13:23

fly_ua

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