ASP.NET 三层结构下使用GridView增删改查完整代码

ASP.NET 三层结构下使用GridView增删改查完整代码，包括sqlserver的脚本，解压直接运行即可。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DataAccess;
using ModelEntity;

namespace BusinessService
{
    /// 

    /// 业务层类
    /// 

    public class ServiceManager
    {
        public static bool add（User user）
        {
            return DBAccess.add（user）;
        }

        public static bool delete（int userid）
        {
            return DBAccess.delete（userid）;
        }

        public static bool update（User user）
        {
            return DBAccess.update（user）;
        }

        public static List getAllUsers（）
        {
            return DBAccess.getAllUsers（）;
        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2012-08-05 15:23  GridView代码\
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\BusinessService\
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\BusinessService\bin\
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\BusinessService\bin\Debug\
     文件        4608  2012-08-05 15:17  GridView代码\ProjectModel\BusinessService\bin\Debug\BusinessService.dll
     文件       11776  2012-08-05 15:17  GridView代码\ProjectModel\BusinessService\bin\Debug\BusinessService.pdb
     文件       10240  2012-08-05 15:17  GridView代码\ProjectModel\BusinessService\bin\Debug\DataAccess.dll
     文件       26112  2012-08-05 15:17  GridView代码\ProjectModel\BusinessService\bin\Debug\DataAccess.pdb
     文件        4608  2012-08-05 15:17  GridView代码\ProjectModel\BusinessService\bin\Debug\ModelEntity.dll
     文件       11776  2012-08-05 15:17  GridView代码\ProjectModel\BusinessService\bin\Debug\ModelEntity.pdb
     文件        2922  2012-08-05 09:44  GridView代码\ProjectModel\BusinessService\BusinessService.csproj
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\BusinessService\obj\
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\BusinessService\obj\Debug\
     文件        1073  2012-08-05 15:17  GridView代码\ProjectModel\BusinessService\obj\Debug\BusinessService.csproj.FileListAbsolute.txt
     文件        4608  2012-08-05 15:17  GridView代码\ProjectModel\BusinessService\obj\Debug\BusinessService.dll
     文件       11776  2012-08-05 15:17  GridView代码\ProjectModel\BusinessService\obj\Debug\BusinessService.pdb
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\BusinessService\obj\Debug\Refactor\
     文件        3584  2012-08-05 14:28  GridView代码\ProjectModel\BusinessService\obj\Debug\Refactor\BusinessService.dll
     文件        5725  2012-08-05 15:17  GridView代码\ProjectModel\BusinessService\obj\Debug\ResolveAssemblyReference.cache
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\BusinessService\obj\Debug\TempPE\
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\BusinessService\Properties\
     文件        1386  2012-08-05 08:56  GridView代码\ProjectModel\BusinessService\Properties\AssemblyInfo.cs
     文件         725  2012-08-05 10:53  GridView代码\ProjectModel\BusinessService\ServiceManager.cs
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\DataAccess\
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\DataAccess\bin\
     目录           0  2012-08-05 15:23  GridView代码\ProjectModel\DataAccess\bin\Debug\
     文件       10240  2012-08-05 15:17  GridView代码\ProjectModel\DataAccess\bin\Debug\DataAccess.dll
     文件       26112  2012-08-05 15:17  GridView代码\ProjectModel\DataAccess\bin\Debug\DataAccess.pdb
     文件        4608  2012-08-05 15:17  GridView代码\ProjectModel\DataAccess\bin\Debug\ModelEntity.dll
     文件       11776  2012-08-05 15:17  GridView代码\ProjectModel\DataAccess\bin\Debug\ModelEntity.pdb
............此处省略58个文件信息