mvc4验证机制、伙伴类共享源数据信息
一，mvc前后台验证
自定义属性标签MyRegularExpression
using System;using System.Collections.Generic;using System.ComponentModel.DataAnnotations;using System.Linq;using System.Web;namespace MvcAjaxValidate.Models{ public class MyRegularExpression:RegularExpressionAttribute { //为了多次修改正则，我们直接写一个类，只改这个地方就好//勿忘global文件 //DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(MyRegularExpression), typeof(RegularExpressionAttributeAdapter)); public MyRegularExpression() : base(@"^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$") { } }}要起作用，需要在global文件注册适配器
DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(MyRegularExpression), typeof(RegularExpressionAttributeAdapter));
自定义model:
using System;using System.Collections.Generic;using System.ComponentModel.DataAnnotations;using System.Linq;using System.Web;using System.Web.Mvc;namespace MvcAjaxValidate.Models{ public class DemoEntity { [Required(ErrorMessage = "*必填")] public int id { get; set; } [StringLength(10, ErrorMessage = "*长度小于10")] //[RegularExpression(@"^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$", ErrorMessage = "必须邮箱")] [MyRegularExpression(ErrorMessage = "必须邮箱")] public string name { get; set; } // [Range(5, 10,ErrorMessage="5-10")]//数值，而不是长度 [StringLength(5,ErrorMessage="最大5个字符")] //[MinLength(2,ErrorMessage="最小2个字符")]//不起作用，改成正则形式 [RegularExpression(@"^.{2,}", ErrorMessage = "最小2个字符")] [DataType(DataType.Password)] public string password { get; set; } [DataType(DataType.Password)] [Compare("password", ErrorMessage = "密码要一致")] public string passwordRe { get; set; } }}controller action
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;using MvcAjaxValidate.Models;namespace MvcAjaxValidate.Controllers{ public class DemoEntityController : Controller { // // GET: /DemoEntity/ public ActionResult create(DemoEntity demo) { if (ModelState.IsValid) { } return View(); } }}view（create强类型视图）
@model MvcAjaxValidate.Models.DemoEntity@{ Layout = null;}<!DOCTYPE html><html><head> <meta name="viewport" content="width=device-width" /> <title>create</title></head><body> <script src="~/Scripts/jquery-1.7.1.min.js"></script> <script src="~/Scripts/jquery.validate.min.js"></script> <script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script> <script> function complete() { alert(1) } </script> @using (Ajax.BeginForm("create", new AjaxOptions() {HttpMethod="post", Confirm="ok?" , OnComplete="complete"})) { @Html.ValidationSummary(true) <fieldset> <legend>DemoEntity</legend> <div class="editor-label"> @Html.LabelFor(model => model.name) </div> <div class="editor-field"> @Html.EditorFor(model => model.name) @Html.ValidationMessageFor(model => model.name) </div> <div class="editor-label"> @Html.LabelFor(model => model.password) </div> <div class="editor-field"> @Html.EditorFor(model => model.password) @Html.ValidationMessageFor(model => model.password) </div> <div class="editor-label"> @Html.LabelFor(model => model.passwordRe) </div> <div class="editor-field"> @Html.EditorFor(model => model.passwordRe) @Html.ValidationMessageFor(model => model.passwordRe) </div> <p> <input type="submit" value="Create" /> </p> </fieldset> } <div> @Html.ActionLink("Back to List", "Index") </div></body></html>二，常为ef自动生成实体类采用伙伴类的技术验证
using System;using System.Collections.Generic;using System.ComponentModel.DataAnnotations;//...using System.Linq;using System.Web;namespace MvcAjaxValidate.Models{ //伙伴类的技术，共享源数据信息 //防止ef实体修改后，标签出被冲掉，我们换一个地方写。ef变 标签写到外面了，就不会丢了 //让实体类和目标类共享信息，在这个类的所有属性，目标类就会有 //这个类和目标类属性名一样哦 //实体类和目标类要在一个命名空间！！！！！！！！！！！！！！！！ [MetadataType(typeof(MetaTypeShare))] public partial class UserInfor { } //目标类 public class MetaTypeShare { public int ID { get; set; } [Required(ErrorMessage="必填")] public string UName { get; set; } public string UPassword { get; set; } public Nullable<System.DateTime> USubTime { get; set; } public Nullable<System.DateTime> ULastMoltifyTime { get; set; } public Nullable<System.DateTime> ULastLoginTime { get; set; } public string UEmail { get; set; } public string UAddress { get; set; } public string UPhone { get; set; } public string URemark { get; set; } public Nullable<short> Usex { get; set; } public Nullable<short> UDelFlag { get; set; } public Nullable<int> UErrorCount { get; set; } } }