ASP.NET MVC Html.ValidationSummary(true)不显示模型错误

Question

我有一些Html.ValidationSummary的问题.我不想在ValidationSummary中显示属性错误.当我设置Html.ValidationSummary(true)时,它不会显示来自ModelState的错误消息.在字符串的控制器操作中有一些异常时

MembersManager.RegisterMember(member);

catch部分向ModelState添加错误:

ModelState.AddModelError("error", ex.Message);

但ValidationSummary不显示此错误消息.当我设置Html.ValidationSummary(false)时,所有消息都显示,但我不想显示属性错误.我该如何解决这个问题？

这是我正在使用的代码:

模型:

public class Member
{
        [Required(ErrorMessage = "*")]
        [DisplayName("Login:")]
        public string Login { get; set; }

        [Required(ErrorMessage = "*")]
        [DataType(DataType.Password)]
        [DisplayName("Password:")]
        public string Password { get; set; }

        [Required(ErrorMessage = "*")]
        [DataType(DataType.Password)]
        [DisplayName("Confirm Password:")]
        public string ConfirmPassword { get; set; }
}

控制器:

[HttpPost]
public ActionResult Register(Member member)
{
    try
    {
        if (!ModelState.IsValid)
            return View();

        MembersManager.RegisterMember(member);
    }
    catch (Exception ex)
    {
        ModelState.AddModelError("error", ex.Message);

        return View(member);
    }
}

视图:

<% using (Html.BeginForm("Register", "Members", FormMethod.Post, 
                        new { enctype = "multipart/form-data" })) {%> 
    <p>
        <%= Html.LabelFor(model => model.Login)%>
        <%= Html.TextBoxFor(model => model.Login)%>
        <%= Html.ValidationMessageFor(model => model.Login)%>
    </p>

    <p>
        <%= Html.LabelFor(model => model.Password)%>
        <%= Html.PasswordFor(model => model.Password)%>
        <%= Html.ValidationMessageFor(model => model.Password)%>
    </p>

    <p>
        <%= Html.LabelFor(model => model.ConfirmPassword)%>
        <%= Html.PasswordFor(model => model.ConfirmPassword)%>
        <%= Html.ValidationMessageFor(model => model.ConfirmPassword)%>
    </p>

    <div>
        <input type="submit" value="Create" />
    </div>

    <%= Html.ValidationSummary(true)%>
<% } %>

Answer 1

我相信ValidationSummary标志的工作方式是它只显示ModelErrors string.empty作为键.否则,假设它是属性错误.没有验证您提供的字符串是/不是模型上的属性.

ModelState.AddModelError(string.Empty, ex.Message);

Answer 2

这样做效果更好,因为您可以显示指定键的validationMessage:

    ModelState.AddModelError("keyName","Message");

并显示如下:

    @Html.ValidationMessage("keyName")

Answer 3

我知道这有点陈旧,已被标记为147票的答案,但还有其他一些需要考虑.

如果需要,您可以在ValidationSummary中显示所有模型错误,名为property和String.Empty键的属性.ValidationSummary中有一个重载会执行此操作.

    //   excludePropertyErrors:
    //   true to have the summary display model-level errors only, or false to have
    //   the summary display all errors.
    public static MvcHtmlString ValidationSummary(this HtmlHelper htmlHelper, bool excludePropertyErrors);

Answer 4

也许是这样的:

[HttpPost]
public ActionResult Register(Member member)
{
    try
    {
       if (!ModelState.IsValid)
       {
          ModelState.AddModelError("keyName", "Form is not valid");
          return View();
       }
       MembersManager.RegisterMember(member);
    }
    catch (Exception ex)
    {
       ModelState.AddModelError("keyName", ex.Message);
       return View(member);
    }
}

并在显示中添加:

<div class="alert alert-danger">
  @Html.ValidationMessage("keyName")
</div>

要么

<div class="alert alert-danger">
  @Html.ValidationSummary(false)
</div>

Answer 5

@Html.ValidationSummary(false,"", new { @class = "text-danger" })

使用这条线可能会有所帮助