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ASP.NET MVC4系列验证机制、伙伴类共享源数据信息（数据注解和验证）

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09/11
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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(, 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(,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()
} </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; }
}}