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EF 验证

时间:2016-08-20 10:06:02      阅读:271      评论:0      收藏:0      [点我收藏+]

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ModelState.IsValid  验证是否通过
ModelState.AddModelError("Name", "Name is required");  返回错误信息

eg:
 [HttpPost]
public ActionResult ModelStateAction(ModelStateModel model) { if (string.IsNullOrEmpty(model.Name)) { ModelState.AddModelError("Name", "Name is required"); } if (string.IsNullOrEmpty(model.Email)) { ModelState.AddModelError("Email", "Email is required"); } else { string expression = @"^\s*([A-Za-z0-9_-]+(\.\w+)*@([\w-]+\.)+\w{2,3})\s*$"; Regex reg = new Regex(expression); if(!reg.IsMatch(model.Email)) { ModelState.AddModelError("Email", "Email is invalid"); } } if (ModelState.IsValid) { ViewBag.Name = model.Name; ViewBag.Email = model.Email; } return View(model); }

@Html.ValidationSummary() 会把所有验证不通过的信息逐条显示出来
@Html.ValidationMessageFor(model => model.Name)显示属性对应的验证错误信息

上面的例子是手动加验证,还提供了DataAnnotations
using System.ComponentModel.DataAnnotations;

 using System.ComponentModel.DataAnnotations;
  
 namespace SlarkInc.Models
{
   public class DataAnnotationModel
     {
        [Required(ErrorMessage = "Name is required")]
         public string Name { get; set; }

        [Required(ErrorMessage = "Email is required")]
         [RegularExpression(@"^\s*([A-Za-z0-9_-]+(\.\w+)*@([\w-]+\.)+\w{2,3})\s*$", ErrorMessage = "Email is invalid")]
        public string Email { get; set; }
    }
 }

客户端验证
 <configuration>
   <appSettings>
     <add key="ClientValidationEnabled" value="true" />
     <add key="UnobtrusiveJavaScriptEnabled" value="true" />
   </appSettings>
 </configuration>

数据
连接  <add name="DefaultConnection" connectionString="Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\EFDemo.mdf;Integrated Security=True"  providerName="System.Data.SqlClien/>
操作

Enable-Migrations 初始化数据迁移

Add-Migration dsl 添加数据迁移记录

Update-Database 更新数据库。 



EF 验证

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原文地址:http://www.cnblogs.com/xtsnet/p/5789688.html

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