C# 验证不可见

我有一个联系表格，用户可以联系我。它是用asp.NETMVC编写的，但问题是在提交后没有填写任何文本框，文本框上没有验证

这是我的表格：

@using (Html.BeginForm("contact","Home", FormMethod.Post, new { @enctype = "multipart/form-data" }))
    {
        @Html.AntiForgeryToken()        
        @Html.ValidationSummary(true)

        <section id="contact" class="text-center">
            <div class="container">
                <div class="row">
                    <div class="col-md-12 wow fadeInDown" data-wow-delay="2000">
                        <h3>CONTACT Microrout.nl</h3>
                    </div>
                    <div class="col-md-2"></div>
                    <div class="col-md-8">

                        Microrout.nl
                        <br />frederik hendriklaan 253-b
                        <br />Den Haag
                        <br />0641697144


                    </div>
                    <div class="col-md-2"></div>
                    <hr />
                    <div class="form-group">

                        <div class="col-md-10">
                            @Html.TextBoxFor(m => m.FromName, new {placeholder = "Your Name", @class = "form-control" })
                            @Html.ValidationMessageFor(m => m.FromName)
                        </div>
                    </div>

                    <div class="form-group">

                        <div class="col-md-10">
                            @Html.TextBoxFor(m => m.subject, new {placeholder = "Subject of message", @class = "form-control" })
                            @Html.ValidationMessageFor(m => m.subject)
                        </div>
                    </div>

                    <div class="form-group">

                        <div class="col-md-10">
                            @Html.TextBoxFor(m => m.FromEmail, new {placeholder ="Your email", @class = "form-control" })
                            @Html.ValidationMessageFor(m => m.FromEmail)
                        </div>
                    </div>
                    <div class="form-group">

                        <div class="col-md-10">
                            @Html.TextAreaFor(m => m.Message, new {placeholder = "Your message", @class = "form-control" })
                            @Html.ValidationMessageFor(m => m.Message)
                        </div>
                    </div>
                    <div class="form-group">
                        <div class="col-md-3">
                            <input type="submit" value="SHOOT MESSAGE" class="form-control">
                        </div>
                    </div>
                </div>
            </div>
            @*<div class="google_map">
                    <div id="map-canvas"></div>
                </div>*@


        </section>
    }






</section>

我正在使用smoothScroll导航，如下所示：

public ActionResult Contact()
        {
            EmailFormModel model = TempData["EmailFormModel"] as EmailFormModel; 
            ViewBag.Message = "Your contact page.";


            return View();
        }

[HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<ActionResult> Contact(EmailFormModel model)
        {
            TempData["EmailFormModel"] = model;
            string message2 = "There are a few errors";
            if (ModelState.IsValid)
            {




                var body = "<p>Email From: {0} ({1})</p><p>Message:</p><p>{2}</p>";
                var message = new MailMessage();
                message.To.Add(new MailAddress("nengelen@online.nl")); //replace with valid value
                message.Subject = model.subject;
                message.Body = string.Format(body, model.FromName, model.FromEmail, model.Message);
                message.IsBodyHtml = true;

                using (var smtp = new SmtpClient())
                {
                    await smtp.SendMailAsync(message);

                }

                return new RedirectResult(Url.Action("") + "#contact");
            }

            if (Request.IsAjaxRequest())
            {
                return new JsonResult { Data = new { succes = true, message = message2 } };
            }
            TempData["Message"] = message2;
            return View(model);

        }

<div class="collapse navbar-collapse">
                        <ul class="nav navbar-nav navbar-right">
                            <li><a href="#home" class="smoothScroll">HOME</a></li>
                            <li><a href="#about" class="smoothScroll">STUDIO</a></li>
                            <li><a href="#team" class="smoothScroll">TEAM</a></li>
                            <li><a href="#service" class="smoothScroll">SERVICES</a></li>
                            <li><a href="#work" class="smoothScroll">WORK</a></li>
                            <li><a href="#pricing" class="smoothScroll">PRICING</a></li>
                            <li><a href="#contact" class="smoothScroll">CONTACT</a></li>
                            @*<li>@Html.ActionLink("Contact", "Contact", "Home")
                            </li>*@
                        </ul>
                    </div>

[HttpGet]
        public ActionResult Contact(string uniqueUri)
        {
            EmailFormModel model = TempData["EmailFormModel"] as EmailFormModel;
            //ViewBag.Message = "Your contact page.";


            return View(model);
        }

        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<ActionResult> Contact(EmailFormModel model)
        {
            TempData["EmailFormModel"] = model;
            string message2 = "There are a few errors";
            if (ModelState.IsValid)
            {
                var body = "<p>Email From: {0} ({1})</p><p>Message:</p><p>{2}</p>";
                var message = new MailMessage();
                message.To.Add(new MailAddress("nengelen@online.nl")); //replace with valid value
                message.Subject = model.subject;
                message.Body = string.Format(body, model.FromName, model.FromEmail, model.Message);
                message.IsBodyHtml = true;

                using (var smtp = new SmtpClient())
                {
                    await smtp.SendMailAsync(message);

                }

                return new RedirectResult(Url.Action("") + "#contact");
            }
            else
            {
                ModelState.AddModelError("ReviewErrors", "some error occured");
                //return RedirectToAction("Create", new { uniqueUri = Request.RequestContext.RouteData.Values["uniqueUri"] });
                return new RedirectResult(Url.Action("") + "#contact");
            }


        }

        public ActionResult Contact()
        {
            EmailFormModel model = TempData["EmailFormModel"] == null ? new EmailFormModel() : (EmailFormModel)TempData["EmailFormModel"];
            ViewBag.Message = "Your contact page.";
            return View(model);



        }

        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<ActionResult> Contact(EmailFormModel model)
        {
            TempData["EmailFormModel"] = model;
            string message2 = "There are a few errors";
            if (ModelState.IsValid)
            {
                var body = "<p>Email From: {0} ({1})</p><p>Message:</p><p>{2}</p>";
                var message = new MailMessage();
                message.To.Add(new MailAddress("nengelen@online.nl")); //replace with valid value
                message.Subject = model.subject;
                message.Body = string.Format(body, model.FromName, model.FromEmail, model.Message);
                message.IsBodyHtml = true;

                using (var smtp = new SmtpClient())
                {
                    await smtp.SendMailAsync(message);

                }

                return new RedirectResult(Url.Action("") + "#contact");
            }
            else
            {
                ModelState.AddModelError("ReviewErrors", "some error occured");
                //return RedirectToAction("Create", new { uniqueUri = Request.RequestContext.RouteData.Values["uniqueUri"] });
                return new RedirectResult(Url.Action("") + "#contact");
            }


        }

但验证是不可见的

谢谢大家的努力。但我刚刚创建了一个新的联系人页面，现在它可以正常工作了。只是要弄清楚，在导航中有正确的链接，但我刚刚提出了一个新问题。我刚刚将DaWood标记为最佳解决方案，因为作为answare，您无法进行多次标记

谢谢大家

您丢失了：

if (!ModelState.IsValid)
{
    return View(model);
}

您需要渲染带有问题的视图。然后，框架将拾取验证错误并显示它们。

之后

if(ModelState.IsValid)

您的电话是：

 return new RedirectResult(Url.Action("") + "#contact");

刷新页面并清除模型状态

如果您需要调用重定向结果，请点击此链接

或

您需要返回

视图（模型）

以获取验证错误

if(ModelState.IsValid)
{
 // ...........Other Code:
 return new RedirectResult(Url.Action("") + "#contact");
}
if (Request.IsAjaxRequest())
{
return new JsonResult { Data = new { success = true, message = message2 } };
}

TempData["Message"] = message2;    
return View(model);

编辑：

public ActionResult Contact()
{
  EmailFormModel model = TempData["EmailFormModel"] == null ? new EmailFormModel() : (EmailFormModel) TempData["EmailFormModel"]; 
  ViewBag.Message = "Your contact page.";
  return View(model);
}

---

当模型状态无效时，需要添加else。并将您的返回移动到if中，以便当模型状态有效时，您返回到模型的肯定检查中。当模型状态无效时，将返回视图，这将保留模型状态数据

if (ModelState.IsValid)
        {
                var body = "<p>Email From: {0} ({1})</p><p>Message:</p><p>{2}</p>";
                var message = new MailMessage();
                message.To.Add(new MailAddress("nengelen@online.nl")); //replace with valid value
                message.Subject = model.subject;
                message.Body = string.Format(body, model.FromName, model.FromEmail, model.Message);
                message.IsBodyHtml = true;

                using (var smtp = new SmtpClient())
                {
                    await smtp.SendMailAsync(message);

                }

                message2 = "Thanks! We'll get back to you soon.";






                //Response.Write("Error sending email: " + error.Message + "<br /> StackTrace: " + error.StackTrace);

            //ViewBag.Message = "Thank you for contact us";
            //return new RedirectToActionAnchor("Contact", "", "#contact");
            TempData["Message"] = message2;
        if (Request.IsAjaxRequest())
        {
            return new JsonResult { Data = new { success = true, message = message2 } };
        }

            return new RedirectResult(Url.Action("") + "#contact");
        }
        else
        {
            return View();
        }

if（ModelState.IsValid）
{
var body=“电子邮件发件人：{0}（{1}）
消息：
{2}
”；
var message=new MailMessage（）；
message.To.Add（新邮件地址（“nengelen@online.nl“”）；//替换为有效值
message.Subject=model.Subject；
message.Body=string.Format（Body，model.FromName，model.FromEmail，model.message）；
message.IsBodyHtml=true；
使用（var smtp=new SmtpClient（））
{
等待smtp.SendMailAsync（消息）；
}
message2=“谢谢！我们很快会回复您的。”；
//响应。写入（“发送电子邮件时出错：+Error.Message+”
StackTrace:+Error.StackTrace）；
//ViewBag.Message=“感谢您与我们联系”；
//返回新的RedirectToActionAnchor（“联系人”、“联系人”）；
TempData[“Message”]=message2；
if（Request.IsAjaxRequest（））
{
返回新的JsonResult{Data=new{success=true，message=message2}；
}
返回新的重定向结果（Url.Action（“”+“#contact”）；
}
其他的
{
返回视图（）；
}

---

此外，如果模型无效，您可能希望启用内置客户端验证以保存到服务器的往返过程

您的if（Request.IsAjaxRequest（））将永远不会被执行，但现在if（）将不会被称为doops。编辑了我的回答Hi Truk，感谢您的编辑，但这里也有一个问题：return View（）转到：，但是联系人的链接是：您只想返回帖子所来自的视图，以便用户可以看到验证消息。将

视图（）

保留为空将返回与您所处的控制器操作同名的视图。如果要调用特定视图，可以显式地调用它，例如

返回视图（“此处的视图名称”）

。此时，您不希望调用控制器操作，只返回带有错误消息的视图。如果调用该操作，它将返回一个不包含错误消息的新视图。昨天也有同样的问题，解决方案是，如果渲染时不使用If（！ModelState.IsValid），则加载初始值。好吧，我试过了。但是验证仍然不可见，如果（！modelState.IsValid），我会把它放在哪里？那之后呢？如果（ModelState.IsValid）{}？问题是我不能返回视图（模型），因为联系人的url是：应该位于控制器操作方法的最顶端。不确定它在url段中的行为如何在POST方法中有什么

if（Request.IsAjaxRequest（））

？您是使用ajax提交表单（在这种情况下不会显示任何验证错误）还是进行正常提交？在提交建议不用于扩展讨论之后，它似乎正在进行完整的发布；这段对话已经结束。

if(ModelState.IsValid)
{
 // ...........Other Code:
 return new RedirectResult(Url.Action("") + "#contact");
}
if (Request.IsAjaxRequest())
{
return new JsonResult { Data = new { success = true, message = message2 } };
}

TempData["Message"] = message2;    
return View(model);

public ActionResult Contact()
{
  EmailFormModel model = TempData["EmailFormModel"] == null ? new EmailFormModel() : (EmailFormModel) TempData["EmailFormModel"]; 
  ViewBag.Message = "Your contact page.";
  return View(model);
}

if (ModelState.IsValid)
        {
                var body = "<p>Email From: {0} ({1})</p><p>Message:</p><p>{2}</p>";
                var message = new MailMessage();
                message.To.Add(new MailAddress("nengelen@online.nl")); //replace with valid value
                message.Subject = model.subject;
                message.Body = string.Format(body, model.FromName, model.FromEmail, model.Message);
                message.IsBodyHtml = true;

                using (var smtp = new SmtpClient())
                {
                    await smtp.SendMailAsync(message);

                }

                message2 = "Thanks! We'll get back to you soon.";






                //Response.Write("Error sending email: " + error.Message + "<br /> StackTrace: " + error.StackTrace);

            //ViewBag.Message = "Thank you for contact us";
            //return new RedirectToActionAnchor("Contact", "", "#contact");
            TempData["Message"] = message2;
        if (Request.IsAjaxRequest())
        {
            return new JsonResult { Data = new { success = true, message = message2 } };
        }

            return new RedirectResult(Url.Action("") + "#contact");
        }
        else
        {
            return View();
        }