Asp.net mvc 将ViewModel验证消息添加到@HTML.LabelFor中的HTML属性

我想验证一个具有asp.net核心mvc内置功能的表单，但是验证消息应该与来自的数据错误属性一起很好地显示。要使其工作，我需要视图中的消息作为字符串

在视图中，我添加了

jquery.validate.js

和

jquery.validate.unobtrusive.js

。两者都已正确加载。表单将与jquery ajax一起提交。为了进行验证，submit按钮执行一个AJAX调用，并阻止提交操作

通常情况下，我会在视图中编写类似的内容（有效）：

但我想将验证消息设置为dataerrorhtml属性，使其样式类似于materialiecss

所以我试着：

@Html.TextBoxFor(model => model.Email, "", new { @id = "EMail", @type = "email", @class = "validate" })
@Html.LabelFor("E-Mail Address", null, new { @for = "EMail", data_error = Html.ValidationMessageFor(model => model.Email) })

wich总是给我“Microsoft.AspNetCore.Mvc.Rendering.TagBuilder”作为错误消息

如何将ViewModel中的验证消息设置为

@html.LabelForModule

方法中的

数据错误

html属性？

要清除，这是我的ViewModel：

public class UserViewModel
{
    [Required(ErrorMessage = "The FirstName address is required")]
    public string FirstName { get; set; }

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

    [Required(ErrorMessage = "The Email address is required")]
    [EmailAddress(ErrorMessage = "Invalid Email Address")]
    public string Email { get; set; }
}

---

您可以通过css显示错误消息，如

materialiecss

，而不显示

数据错误属性

HTML输入：

<div class="input-field col s12">
    @Html.TextBoxFor(model => model.Email, "", new { @id = "EMail", @type = "email",     
    @class = "validate" })
    @Html.LabelFor("E-Mail Address", null, new { @for = "EMail"})
    @Html.ValidationMessageFor(model => model.Email)
</div>

---

我不确定这是否是您想要的，但不久前我有一个类似的（我相信）问题。这是我得到的答案。

<div class="input-field col s12">
    @Html.TextBoxFor(model => model.Email, "", new { @id = "EMail", @type = "email",     
    @class = "validate" })
    @Html.LabelFor("E-Mail Address", null, new { @for = "EMail"})
    @Html.ValidationMessageFor(model => model.Email)
</div>

.field-validation-error span {
    color: inherit;
    display: block;
    position: absolute;
    right: 0;
    top: 100%;
    transition: .2s opacity ease-out, .2s color ease-out;
    -webkit-transition: .2s opacity ease-out, .2s color ease-out;
}