ASP.Net MVC中的远程验证3:如何在Action方法中使用AdditionalFields

Question

我一直在使用新的ASP.Net MVC 3 RemoteAttribute向具有单个参数的动作方法发送远程调用.现在我想使用AdditionalFields属性传入第二个参数:

[Remote("IsEmailAvailable", "Users", AdditionalFields = "InitialEmail")]

IntialEmail是视图中的隐藏字段.动作如下:

public JsonResult IsEmailAvailable(
            string email,
            string InitialEmail)
{
//etc.
}

呈现视图时,将填充隐藏字段,但是远程触发Action方法时,该值为空字符串.

我在其他地方看到区分大小写可能是一个问题,所以我确保Action方法对两个参数都有相同的情况.

还有其他建议吗？此AdditionalFields曾被称为Fields.

谢谢,

Beaudetious

Answer 1

奇怪.这个对我有用:

模型:

public class MyViewModel
{
    [Required]
    [Remote("IsEmailAvailable", "Home", AdditionalFields = "InitialEmail")]
    public string Email { get; set; }
}

控制器:

public class HomeController : Controller
{
    public ActionResult Index()
    {
        return View(new MyViewModel());
    }

    [HttpPost]
    public ActionResult Index(MyViewModel model)
    {
        return View(model);
    }

    public ActionResult IsEmailAvailable(string email, string initialEmail)
    {
        return Json(false, JsonRequestBehavior.AllowGet);
    }
}

视图:

@model AppName.Models.MyViewModel
@{
    ViewBag.Title = "Home Page";
}
<script src="@Url.Content("~/Scripts/jquery.validate.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.js")" type="text/javascript"></script>
@using (Html.BeginForm())
{
    @Html.TextBoxFor(x => x.Email)
    @Html.ValidationMessageFor(x => x.Email)
    <input type="hidden" name="InitialEmail" value="foo@bar.com" />
    <input type="submit" value="OK" />
}

IIRC在ASP.NET MVC 3 RC2中有一些错误,这个错误在RTM中修复了.