MVC2中自定义校验

新建一个Mvc2的应用程序；

在Models 文件夹下新建一个类EmailAttribute

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

namespace MvcTemp.Models
{
    public class EmailAttribute: RegularExpressionAttribute
    {
        public EmailAttribute()
            : base(@"^(\w)+(\.\w+)*@(\w)+((\.\w+)+)$")
        {
        }
    }
}

重新编译下项目，下面演示如何自定义使用这个标记

在Model文件夹下新建一个类Student

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ComponentModel.DataAnnotations;
using MvcTemp.Models;
namespace MvcTemp.Model
{
    public class Student
    {
        private int _id;
        [Required(ErrorMessage="必填")]
        public int Id
        {
            get { return _id; }
            set { _id = value; }
        }
        private string _name;
        [Required(ErrorMessage="必填")]
        public string Name
        {
            get { return _name; }
            set { _name = value; }
        }
        private string _emailAddress;
        [Email(ErrorMessage="错误的邮件地址")]
        public string EmailAddress
        {
            get { return _emailAddress; }
            set { _emailAddress = value; }
        }
    }
}

重新编译下项目，添加Controllers，

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace MvcTemp.Controllers
{
    public class StudentController : Controller
    {
        //
        // GET: /Student/

        public ActionResult Index()
        {
            return View();
        }

        //
        // GET: /Student/Details/5

        public ActionResult Details(int id)
        {
            return View();
        }

        //
        // GET: /Student/Create

        public ActionResult Create()
        {
            return View();
        } 

        //
        // POST: /Student/Create

        [HttpPost]
        public ActionResult Create(FormCollection collection)
        {
            try
            {
                // TODO: Add insert logic here

                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
        
        //
        // GET: /Student/Edit/5
 
        public ActionResult Edit(int id)
        {
            return View();
        }

        //
        // POST: /Student/Edit/5

        [HttpPost]
        public ActionResult Edit(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add update logic here
 
                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }

        //
        // GET: /Student/Delete/5
 
        public ActionResult Delete(int id)
        {
            return View();
        }

        //
        // POST: /Student/Delete/5

        [HttpPost]
        public ActionResult Delete(int id, FormCollection collection)
        {
            try
            {
                // TODO: Add delete logic here
 
                return RedirectToAction("Index");
            }
            catch
            {
                return View();
            }
        }
    }
}

　　在Global.asax页中注册自己定义的标记

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using MvcTemp.Models;
using System.ComponentModel.DataAnnotations;

namespace MvcTemp
{
    // 注意: 有关启用 IIS6 或 IIS7 经典模式的说明，
    // 请访问 http://go.microsoft.com/?LinkId=9394801

    public class MvcApplication : System.Web.HttpApplication
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(
                "Default", // 路由名称
                "{controller}/{action}/{id}", // 带有参数的 URL
                new { controller = "Home", action = "Index", id = UrlParameter.Optional } // 参数默认值
            );

        }

        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(EmailAttribute), typeof(RegularExpressionAttributeAdapter));
            RegisterRoutes(RouteTable.Routes);
        }
    }
}

   最后创建Student的Action视图即可