C# MVC4远程验证未接收参数值

我正在尝试为视图中的字段实现远程验证。到目前为止，除了validation controller方法中的参数为null之外，所有内容都正常工作，即使该字段包含值。我错过了什么

验证控制器方法

public JsonResult IsVanityURL_Available(string VanityURL)
{
    if (!_webSiteInfoRepository.GetVanityURL(VanityURL))
        return Json(true, JsonRequestBehavior.AllowGet);

    string suggestedUID = String.Format(CultureInfo.InvariantCulture,
        "{0} is not available.", VanityURL);

    for (int i = 1; i < 100; i++)
    {
        string altCandidate = VanityURL + i.ToString();
        if (_webSiteInfoRepository.GetVanityURL(altCandidate)) continue;
        suggestedUID = String.Format(CultureInfo.InvariantCulture,
            "{0} is not available. Try {1}.", VanityURL, altCandidate);
        break;
    }
    return Json(suggestedUID, JsonRequestBehavior.AllowGet);
}

看法

@Html.LabelFor（model=>model.SelectedContact.WebSiteInfoes[0].VanityURL）
@Html.TextBoxFor（model=>model.SelectedContact.WebSiteInfoes[0].VanityURL，新的{@class=“form control”，@placeholder=“Enter-URL”}）

更新 重复帖子中的答案确实解决了问题。

更改您的实体
        change your entity 
        [DisplayName("Vanity URL")]
        [Remote("IsVanityURL_Available", "Validation",AdditionalFields = "VanityURL")]
        [RegularExpression(@"(\S)+", ErrorMessage = "White space is not allowed.")]
        [Editable(true)]               
        public string VanityURL { get; set; }

    and add this to your view
    @{
    var VanityURL=Model.SelectedContact.WebSiteInfoes[0].VanityURL
    }



<div class="row">
    <div class="form-group col-md-12">
        <div class="editor-label">
            @Html.LabelFor(model => model.SelectedContact.WebSiteInfoes[0].VanityURL)
        </div>
        <div class="input-group margin-bottom-small">
            <span class="input-group-addon"><i class="fa fa-external-link-square fa-fw"></i></span>
    @Html.TextBox("VanityURL",VanityURL,new { @class = "form-control", @placeholder = "Enter Vanity URL" })
        </div>
    </div>
</div>

[显示名称（“虚荣URL”）]
[远程（“IsVanityURL_可用”、“验证”，AdditionalFields=“VanityURL”）]
[RegularExpression（@“（\S）+”，ErrorMessage=“不允许空白。”）]
[可编辑（正确）]
公共字符串VanityURL{get；set；}
并将其添加到您的视图中
@{
var VanityURL=Model.SelectedContact.WebSiteInfoes[0]。VanityURL
}
@Html.LabelFor（model=>model.SelectedContact.WebSiteInfoes[0].VanityURL）
@TextBox（“VanityURL”，VanityURL，new{@class=“form control”，@placeholder=“Enter vanitary URL”}）

我找到了另一种避免更改jquery.validate.js文件的方法。这涉及到在视图中设置TextBoxFor的名称，例如

@Html.TextBoxFor(model => model.SelectedContact.WebSiteInfoes[0].VanityURL, new { @class = "form-control", @placeholder = "Enter Vanity URL", @Name="VanityUrl })

我恢复了对js文件的更改，然后添加了视图名称属性和模型远程AdditionalFields定义的组合，效果很好

---

这一变化也造成了一些无法预料的问题。我终于找到了解决办法。我更改了GET to a POST并从FormsCollection中获取了所需的值。这让我走上了正确的方向。这使我能够完全绕过复杂的数据对象命名问题

可能重复的感谢指针。我用建议的更改更改了jquery.validate文件，但它没有更改任何内容。参数仍然为空。请使用浏览器工具在js文件上放置断点，并检查

数据的值是否为
{VanityURL:someValue}
抱歉，它确实解决了问题。我的BundleConfig使用的是我没有更改的min版本。谢谢你的帮助。谢谢，但我已经试过了，没有成功。该值仍然为空。请发布您的整个entitylets查看此更新的答案是否适合您
        change your entity 
        [DisplayName("Vanity URL")]
        [Remote("IsVanityURL_Available", "Validation",AdditionalFields = "VanityURL")]
        [RegularExpression(@"(\S)+", ErrorMessage = "White space is not allowed.")]
        [Editable(true)]               
        public string VanityURL { get; set; }

    and add this to your view
    @{
    var VanityURL=Model.SelectedContact.WebSiteInfoes[0].VanityURL
    }



<div class="row">
    <div class="form-group col-md-12">
        <div class="editor-label">
            @Html.LabelFor(model => model.SelectedContact.WebSiteInfoes[0].VanityURL)
        </div>
        <div class="input-group margin-bottom-small">
            <span class="input-group-addon"><i class="fa fa-external-link-square fa-fw"></i></span>
    @Html.TextBox("VanityURL",VanityURL,new { @class = "form-control", @placeholder = "Enter Vanity URL" })
        </div>
    </div>
</div>

@Html.TextBoxFor(model => model.SelectedContact.WebSiteInfoes[0].VanityURL, new { @class = "form-control", @placeholder = "Enter Vanity URL", @Name="VanityUrl })