Question

Very basic Model:

public class Person
{
    public string Name;
    public int Age;
}

and very simple view:

@model DynWebPOC.Models.Person

@{
    Layout = "~/Views/Shared/_Layout.cshtml";
}

Hello, @Model.Name
<br/>
You're getting old at @Model.Age years old now!

@using(Html.BeginForm("Index","Test",FormMethod.Post))
{
    <fieldset>       
        <label for="name" style="color: whitesmoke">Name:</label>    
        @Html.TextBoxFor(m => m.Name)
        <br/>
        <label for="age" style="color: whitesmoke">Age:</label>

        @Html.TextBoxFor(m => m.Age)

        <br/>
        <input type="submit" value="Submit"/>
    </fieldset>
}

And a very simple controller:

public class TestController : Controller
{
    [HttpGet]
    public ActionResult Index()
    {
        object model = new Person {Name = "foo", Age = 44};
        return View(model);
    }


   [HttpPost]
   public ActionResult Index(Person person)
   {
       return View();
   }
}

When the screen loads, the values bind correctly to the page. But when I push submit button, the person object has all null values for age & name.

Because I used Html.TextBoxFor, shouldn’t it have set up all the bindings correctly and the object should have automatically bound back to the POST? It binds just fine in the GET..

Did I miss something in the call to Html.BeginForm() maybe?

Answer 1

You must create Properties in your model

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

instead of

public class Person
{
    public string Name;
    public int Age;
}

ASP.net MVC only binds properties.