FormPanel + Checkbox | MVC | Model Binder in Controller

[carlosveber]

Consider these classes:

// Master
public class MasterModel
{
    public MasterModel()
    {
        MyList = new List<DetailModel>();
    }

    public decimal? Id { get; set; }
    public string Name { get; set; }
    public bool? Valid { get; set; }

    public List<DetailModel> MyList { get; set; }
}

// Detail
public class DetailModel
{
    public decimal? ItemId { get; set; }
    public decimal? Description { get; set; }
}

If I create a FormPanel with fields that have the same name of my model properties, the mvc engine will already map them on submit to an object, so i can retrieve in my controller method:

using System.Web.Mvc;

public class MasterController : Controller
{
    [HttpPost]
    public ActionResult Item(MasterModel model)
    {
        // model.Id : is mapped to a TextField().Name("Id")   << OK
        // model.Name : is mapped to a TextField().Name("Name") << OK

        // model.Valid : is mapped to a CheckBox().Name("Valid") << NOT OK !!!

        // model.MyList[0].ItemId : is mapped to a TextField().Name("MyList[0].Name") << OK
        // model.MyList[0].Description : is mapped to a TextField().Name("MyList[0].Description") << OK

        // model.MyList[1].ItemId : is mapped to a TextField().Name("MyList[1].Name") << OK
        // model.MyList[1].Description : is mapped to a TextField().Name("MyList[1].Description") << OK


        return null; // just a sample
    }
}

If i use TextFields or Hidden, the MVC Model Binder will work just fine..

but CHECKBOX is not..

I can read the post values in a FormCollection object, but i have a form with too many Checkboxes, that would be fairly 'ugly' to code and mantain.
I have tryed rendering HTML inputs, but that does not work because there is no FORM tag in the HTML.

Are there any alternatives other than getting the values from FormCollection?

[carlosveber]

Ok, i got it... if anyone needs it, this is how you setup the CheckBox in the View:

 @Html.X().Checkbox()
    .Name("Valid")
    .Checked(Model.Valid ?? false)
    .InputValue("true")

It was missing the InputValue property.

And, if you want to receive the value, even if CheckBox is unchecked

 @Html.X().Checkbox()
    .Name("Valid")
    .Checked(Model.Valid ?? false)
    .InputValue("true")
    .UncheckedValue("false")