如何在 ASP.NET MVC 中的验证消息中呈现 html? [英] How can I render html in validation message in ASP.NET MVC?

问题描述

我目前正在开发一个注册页面.当用户已经存在时，我想在电子邮件字段的错误消息中为用户提供登录和重置密码链接.在控制器中我有:

[HttpPost]public ActionResult Register(注册模型注册){...如果(用户存在){const string errorMessage = "用户已经存在.您可以<a href="/account/login">登录</a> ...";ModelState.AddModelError("Email", errorMessage);返回视图(注册"，注册)；}}

但是当我尝试在视图中输出此消息时，我没有得到我期望的结果.我得到像纯文本一样的 html 标记.我已经试过了:

@using(Html.BeginForm()){<div>@Html.TextBoxFor(m => m.Email)@{@Html.ValidationMessageFor(m => m.Email)[e-mail](Html.ValidationMessageFor(m => m.Email))...stringvalidationMessage = Html.ValidationMessageFor(m => m.Email).ToString();@Html.Raw(validationMessage)...stringvalidationMessage = Html.ValidationMessageFor(m => m.Email).ToHtmlString();@Html.Raw(validationMessage)...stringvalidationMessage = Html.ValidationMessageFor(m => m.Email).ToString();@(new HtmlString(validationMessage))...stringvalidationMessage = Html.ValidationMessageFor(m => m.Email).ToHtmlString();@(new HtmlString(validationMessage))...stringvalidationMessage = Html.ValidationMessageFor(m => m.Email).ToString();@(new MvcHtmlString(validationMessage))...stringvalidationMessage = Html.ValidationMessageFor(m => m.Email).ToHtmlString();@(new MvcHtmlString(validationMessage))}

}

解决方案

@Html.Raw(HttpUtility.HtmlDecode(Html.ValidationMessageFor(m => m.Email).ToHtmlString()))

虽然不好看

I am currently developing a registration page. When user already exists I want to provide login and reset password links for user in error message for email field. In controller I have:

[HttpPost]
public ActionResult Register(RegistrationModel registration)
{
  ...

  if(userExists)
  {
      const string errorMessage = "User already exist. You can <a href="/account/login">login</a> ...";
      ModelState.AddModelError("Email", errorMessage);
      return View("Register", registration);
  }
}

But when I try to output this message in view I do not get what I expect. I get html markup like plain text. I've already tried:

@using(Html.BeginForm())
{
<div>@Html.TextBoxFor(m => m.Email)            
@{
   @Html.ValidationMessageFor(m => m.Email)

   ...

   @Html.Raw(Html.ValidationMessageFor(m => m.Email))

   ...

   string validationMessage = Html.ValidationMessageFor(m => m.Email).ToString();
   @Html.Raw(validationMessage)

   ...

   string validationMessage = Html.ValidationMessageFor(m => m.Email).ToHtmlString();
   @Html.Raw(validationMessage)

   ...

   string validationMessage = Html.ValidationMessageFor(m => m.Email).ToString();
   @(new HtmlString(validationMessage))

   ...

   string validationMessage = Html.ValidationMessageFor(m => m.Email).ToHtmlString();
   @(new HtmlString(validationMessage))

   ...

   string validationMessage = Html.ValidationMessageFor(m => m.Email).ToString();
   @(new MvcHtmlString(validationMessage))

   ...

   string validationMessage = Html.ValidationMessageFor(m => m.Email).ToHtmlString();
   @(new MvcHtmlString(validationMessage))

}
</div>
}

解决方案

@Html.Raw(HttpUtility.HtmlDecode(Html.ValidationMessageFor(m => m.Email).ToHtmlString()))

Isn't pretty though

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