网上购物系统asp.net

基于。net的网上购物系统，用sql数据库，带有论文，系统介绍详细，代码清晰

using System;
using System.Collections.Generic;
using System.Text;
using Numensoft.Data;
using System.Reflection;
using System.Configuration;
using MappedClasses;
using System.Data;


namespace BusinessManager
{
    
    public class BusinessManager
    {
        #region   插入操作
        public void Insert（T instance）
        {
           NumensoftSqlConnection nmsqlcon=new NumensoftSqlConnection（instance）;
           nmsqlcon.Add（instance）;
        }
        #endregion
        #region    验证登陆
        public bool validate（T instance）
        {
            NumensoftSqlConnection nmsqlcon = new NumensoftSqlConnection（instance）;
            bool validat=nmsqlcon.validate（instance）;
            return validat;
        }
        #endregion
        #region   根据关键字取的信息
        /// 

        /// 根据关键字取的整个行信息
        /// 

        /// 
        /// 
        public T GetMessageByID（T instance）
        {
            NumensoftSqlConnection nmsqlcon = new NumensoftSqlConnection（instance）;
             return nmsqlcon.GetMessageByID（instance）;

         }
        #endregion
        #region   更新数据
        public void Update（T instance）
        {
            NumensoftSqlConnection nmsqlcon = new NumensoftSqlConnection（instance）;
            nmsqlcon.Update（instance）;
        }
         #endregion
        #region       获取整张表
        /// 

        /// 通过标记类获取整张表
        /// 

        /// 
        /// 
        public DataTable GetDataTable（T instance）
        {
            NumensoftSqlConnection nmsqlcon = new NumensoftSqlConnection（instance）;
            return nmsqlcon.GetDataTable（）;
        }
        
        #endregion
        #region   删除整张表
        public void DeleteTable（T instance）
        {
            NumensoftSqlConnection nmsqlcon = new NumensoftSqlConnection（instance）;
            nmsqlcon.DeleteTable（instance）;
        }
        #endregion
        #region   删除指定类型的映射实例
        public void Delete（T instance）
        {
            NumensoftSqlConnection nmsqlcon = new NumensoftSqlConnection（instance）;
            nmsqlcon.Delete（instance）;
        }
        #endregion
        #region     返回经过处理表的DataSet
        public DataSet GetDataSet（String SQLStatementT instance）
        {
            NumensoftSqlConnection nmsqlcon = new NumensoftSqlConnection（instance）;
            return nmsqlcon.CreateDateSet（SQLStatement）;

        }
        #endregion 
        #region        判断数据库中是否存在该字段名
        public bool Judge（String SQLStatement T instance）
        {
            NumensoftSqlConnection nmsqlcon = new NumensoftSqlConnection（instance）;
            return  nmsqlcon.Judge（SQLStatement）;

        }
        #endregion
    }

}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     目录          0  2009-06-29 10:24  Numensoft

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager\bin

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager\bin\Debug

     文件      16384  2009-05-04 18:22  Numensoft\BusinessManager\bin\Debug\BusinessManager.dll

     文件      15872  2009-05-04 18:22  Numensoft\BusinessManager\bin\Debug\BusinessManager.pdb

     文件      28672  2009-05-04 18:22  Numensoft\BusinessManager\bin\Debug\MappedClasses.dll

     文件      62976  2009-05-04 18:22  Numensoft\BusinessManager\bin\Debug\MappedClasses.pdb

     文件      24576  2009-05-04 18:21  Numensoft\BusinessManager\bin\Debug\Numensoft.Data.dll

     文件      40448  2009-05-04 18:21  Numensoft\BusinessManager\bin\Debug\Numensoft.Data.pdb

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager\bin\Release

     文件       3122  2004-10-31 14:43  Numensoft\BusinessManager\BusinessManager.cs

     文件       2513  2004-10-27 15:24  Numensoft\BusinessManager\BusinessManager.csproj

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager\obj

     文件        284  2009-05-12 18:17  Numensoft\BusinessManager\obj\BusinessManager.csproj.FileList.txt

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager\obj\Debug

     文件      16384  2009-05-04 18:22  Numensoft\BusinessManager\obj\Debug\BusinessManager.dll

     文件      15872  2009-05-04 18:22  Numensoft\BusinessManager\obj\Debug\BusinessManager.pdb

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager\obj\Debug\Refactor

     文件       6139  2009-05-04 18:22  Numensoft\BusinessManager\obj\Debug\ResolveAssemblyReference.cache

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager\obj\Debug\TempPE

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager\obj\Release

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager\obj\Release\TempPE

     目录          0  2009-06-01 16:51  Numensoft\BusinessManager\Properties

     文件       1349  2004-10-25 17:06  Numensoft\BusinessManager\Properties\AssemblyInfo.cs

     目录          0  2009-06-01 16:51  Numensoft\MappedClasses

     目录          0  2009-06-01 16:51  Numensoft\MappedClasses\bin

     目录          0  2009-06-01 16:51  Numensoft\MappedClasses\bin\Debug

     文件      28672  2009-05-04 18:22  Numensoft\MappedClasses\bin\Debug\MappedClasses.dll

     文件      62976  2009-05-04 18:22  Numensoft\MappedClasses\bin\Debug\MappedClasses.pdb

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