使用远程验证 asp.net MVC

Question

我喜欢尝试使用我在此链接上发现的远程验证： http://www.youtube.com/watch?v=Ll8VtDRj8L4

我已按照说明进行操作，但问题是，当我尝试从引用的表中添加数据时，验证不起作用

模型类：

public partial class ms_student
{
    public int ID { get; set; }
    public string student_code{ get; set; }
    public virtual ms_person ms_person { get; set; }
}

public partial class ms_person
{
    public string name{ get; set; }
    public string email { get; set; }
    public virtual ms_student ms_student { get; set; }
}

元数据：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Web.Mvc;

namespace Test.Models
{
    [MetadataType(typeof(personMD))]
    public partial class ms_person
    {
    }

    public class personMD
    {
        [Required(ErrorMessage = "Email is required")]
        [EmailAddress(ErrorMessage = "Invalid Email Address")]
        [Remote("CheckEmailExist", "Administrator", ErrorMessage = "Email Already Exist")]
        public object email { get; set; }

    }
}

控制器：

public JsonResult CheckEmailExist(string email) // the error i think from email paramater, cause the video said to make the paramater exactly the same name...
{
    return Json(!db.ms_person.Any(m => m.email == email), JsonRequestBehavior.AllowGet);
}

观看次数：

@model Test.Models.ms_student

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

    @Html.TextBoxFor(model => model.student_code) //this one work and already tested
    @Html.ValidationMessageFor(model => model.student_code)

    @Html.TextBoxFor(model => model.ms_person.email) //if you inspect element on browser the NAME are ms_person.email and ID are ms_person_email
    @Html.ValidationMessageFor(model => model.ms_person.email)
}

我尝试将 JsonResult Controller 参数更改为（字符串 ms_person.email），但出现错误说找不到命名空间电子邮件。. 也尝试使用（字符串 ms_person_email），也不起作用

我也使用 student_code 进行了测试，student_code 字段可以正常工作，因为 student_code 属性在同一个模型中（ms_student），不像电子邮件（引用 ms_person）

所有元数据验证工作，就像两个模型都需要的一样，所以我猜错误是在 JsonResult 参数上

非常感谢

Answer 1

更改您的操作方法以包含Bind Prefix 属性/属性

public JsonResult CheckEmailExist([Bind(Prefix="ms_person.email")]string email)
{
  ...

Answer 2

直接改成

@Html.TextBoxFor(model => model.ms_person.email, new{@id="email", @name="email"})