ASP.NET MVC 5 rendering model with wrong data

Question

Action in Controller:

    public JsonResult AccountEdit(Guid? id) //id = 4a01aadd-c61a-4524-95f6-e88a665c0745
    {
        //ModelState.Clear(); <------- strange code
        var model = DAL.AccountGet(id); <-- get model from database

        return new JsonResult
        {
            Data = new
            {
                html = this.RenderPartialView("View", model),
            },
            JsonRequestBehavior = JsonRequestBehavior.AllowGet
        };
    }

The rendered View:

<div>@Model.Id</div> d2afb9a8-fb43-4237-9f34-abc7e5b59a41
<div>@Html.TextBoxFor(model => model.Id)</div> 4a01aadd-c61a-4524-95f6-e88a665c0745
<div>@Html.TextBoxFor(model => Model.Id)</div> 4a01aadd-c61a-4524-95f6-e88a665c0745
@Html.HiddenFor(model => model.Id) 4a01aadd-c61a-4524-95f6-e88a665c0745

Only in line1 is the correct ID

a) If uncomment ModelState.Clear() in all lines will be "d2afb9a8-fb43-4237-9f34-abc7e5b59a41" - correct value.

b) if change AccountEdit(Guid? id) to AccountEdit(Guid? id2)

c) other property of model (missing in the parameters) rendered correct

My question is why?

Sample solution

No any logic public Guid Id { get; set; } Model.Id in view is correct. Helpers ....For() work strange — Alexandr Sulimov, Oct 23 '15 at 18:48
Interesting, do you have a mini project where you isolated this behavior ? I could not replicate this — Shyju, Oct 23 '15 at 19:30
HTML helpers give precedence to values in the ModelState over values in the view model. If you want to prevent that, that's what `ModelState.Clear()`is for. See also: http://stackoverflow.com/questions/7164235/asp-net-mvc2-strongly-typed-helpers-not-using-model — JLRishe, Oct 23 '15 at 19:53

ASP.NET MVC 5 rendering model with wrong data

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