asp.net-mvc - 客户端验证随机不起作用

Question

我正在尝试验证此模型:

 public class LogonModel
    {
        [Required(ErrorMessage="Username is required")]
        public string Username { get; set; }

        [Required(ErrorMessage = "Email is required")]
        public string Email { get; set; }

        [Required(ErrorMessage = "Password is required")]   
        public string Password { get; set; }
    }  

在这个 Action 中:

public ActionResult Logon()
        {
            LogonModel model = new LogonModel();
            return View(model);
        }  

在这个 View 中:

@model POCModelValidation.Models.LogonModel

@{
    ViewBag.Title = "Index";
}

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

<h2>Index</h2>


@using (Html.BeginForm())
{
    <h3>username</h3>
@Html.EditorFor(model => model.Username)
<h3>@Html.ValidationMessageFor(model => model.Username)</h3>
    <br />
<h3>Password</h3>
@Html.EditorFor(model => model.Password)
<h3>@Html.ValidationMessageFor(model => model.Password)</h3>
     <br />
<h3>Email</h3>
@Html.EditorFor(model => model.Email)
<h3>@Html.ValidationMessageFor(model => model.Email)</h3>

<input type="submit" value="Submit"/>
}  

..我无法弄清楚它的工作模式，但它对整个 3 个领域都不起作用。除此之外，如果我填写、离开、然后返回并删除字段的内容足够多次，它最终对所有字段都有效，但第一次很少，而且永远不会同时对所有字段都有效。< br/>我的 web.config

中确实有这些行

...
    <appSettings>
        <add key="ClientValidationEnabled" value="true"/> 
        <add key="UnobtrusiveJavaScriptEnabled" value="true"/> 
      </appSettings>  
...

在 _Layout 中:

...
    <script src="@Url.Content("~/Scripts/jquery-1.4.4.min.js")" type="text/javascript"></script>
...  

有什么想法吗？

Answer 1

加载 Fiddler http://www.fiddler2.com/fiddler2/并确保脚本已正确加载。否则，验证将无法进行。