asp.net – 设置Html.Hiddenfor的值

@using (Html.BeginForm(null,null,FormMethod.Post,new { id = "Login" }))
{
    @Html.ValidationSummary(true,"Gelieve alle velden in te vullen.")

    @Html.LabelFor(m => m.Bid)<br /> 
    @Html.TextBoxFor(m => m.Bid)<br />  
    @Html.LabelFor(m => m.Name)<br /> 
    @Html.TextBoxFor(m => m.Name)<br />    
    @Html.LabelFor(m => m.Email)<br /> 
    @Html.TextBoxFor(m => m.Email)<br /> 
    @Html.HiddenFor(model => model.Car_id,new { value = ViewBag.car.id })
    <input type="submit" value="Bied" class="button" />
}

我想将hiddenfor的值设置为汽车的id(我使用viewbag获取它),但它不能像在这里看到的那样工作：

<input data-val="true" data-val-number="The field Car_id must be a number." data-val-required="Het veld Car_id is vereist." id="Car_id" name="Car_id" type="hidden" value="" />    <input type="submit" value="Bied" class="button" />

这样做的正确方法是什么？或者是否有其他方法将值传递给我的代码？我只需要Postback方法中的Car_id ..