Asp.net学生作业管理系统

本人用的是简单三层结构写的框架，Asp.net请大家多多指教。

using System;
using System.Collections.Generic;
using System.Text;

using SchoolworkManager.Module;
using SchoolworkManager.DAL;

namespace SchoolworkManager.BLL
{
	/// 

    /// 业务逻辑层的AnswerManager类
    /// 

    public class AnswerManager
	{
		/// 

        /// 增加一个实体对象的方法
        /// 

        /// 实体类对象
        /// 增加操作的结果
		public bool AddAAnswer（Answer answer）
		{
			return AnswerService.Insert（answer）;
		}
		/// 

        /// 删除一个实体对象的方法
        /// 

        /// 实体类对象
        /// 删除操作的结果
		public bool DeleteAAnswer（Answer answer）
		{
			return AnswerService.Delete（answer）;
		}
		/// 

        /// 修改一个实体对象的方法
        /// 

        /// 实体类对象
        /// 修改操作的结果
		public bool ModifyAAnswer（Answer answer）
		{
			return AnswerService.Update（answer）;
		}
		/// 

        /// 按Id得到一个实体类对象的方法
        /// 

        /// 实体类对象的Id
        /// 实体类对象或null
		public Answer GetAAnswerById（int id）
		{
			return AnswerService.SelectById（id）;
		}
		/// 

        /// 得到实体类对象泛型集合的方法
        /// 

        /// 实体类对象泛型集合或null
		public List GetAllAnswer（）
		{
			return AnswerService.SelectAll（）;
		}
	}
}

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

     文件       6727  2008-09-22 01:15  学生作业管理系统\SchoolworkManager\SchoolworkManager.sln

    ..A..H.     69632  2008-09-26 16:34  学生作业管理系统\SchoolworkManager\SchoolworkManager.suo

     文件       1328  2008-09-20 16:46  学生作业管理系统\SchoolworkManager\学员作业管理.txt

     文件        252  2008-09-18 15:29  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\BrowseQuestion.aspx

     文件        409  2008-09-18 15:29  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\BrowseQuestion.aspx.cs

     文件        248  2008-09-22 03:02  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\BrowseWork.aspx

     文件        409  2008-09-18 15:31  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\BrowseWork.aspx.cs

     文件       4401  2008-09-20 17:16  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\ModifyInfo.aspx

     文件        313  2008-09-19 15:45  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\ErrorPage.htm

     文件       2536  2008-09-22 16:37  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\MasterPage.master

     文件        606  2008-09-22 16:58  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Web.sitemap

     文件        417  2008-09-18 14:21  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\MasterPage.master.cs

     文件        535  2008-09-20 17:16  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\ModifyInfo.aspx.cs

     文件       1435  2008-09-22 16:32  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\SubmitWork.aspx

     文件        514  2008-09-22 02:11  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\SubmitWork.aspx.cs

     文件      20480  2008-09-22 17:56  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Bin\SchoolworkManager.BLL.dll

     文件      42496  2008-09-22 17:56  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Bin\SchoolworkManager.BLL.pdb

     文件      36864  2008-09-22 17:56  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Bin\SchoolworkManager.DAL.dll

     文件      56832  2008-09-22 17:56  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Bin\SchoolworkManager.DAL.pdb

     文件      24576  2008-09-22 17:36  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Bin\SchoolworkManager.Module.dll

     文件      56832  2008-09-22 17:36  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Bin\SchoolworkManager.Module.pdb

     文件      16384  2008-09-22 17:36  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Bin\SchoolworkManager.SqlDbUtility.dll

     文件      13824  2008-09-22 17:36  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Bin\SchoolworkManager.SqlDbUtility.pdb

     文件      32768  2006-02-09 09:58  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Bin\WebValidates.dll

     文件         94  2008-09-20 11:38  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Bin\WebValidates.dll.refresh

     文件    3145728  2008-09-22 18:11  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\App_Data\SchoolworkDb.mdf

     文件    1048576  2008-09-22 18:11  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\App_Data\SchoolworkDb_log.ldf

     文件       3131  2008-09-22 16:16  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Admin\EditFixedWork.aspx

     文件        428  2008-09-18 16:05  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Admin\AdminMasterPage.master.cs

     文件        414  2008-09-18 16:24  学生作业管理系统\SchoolworkManager\SchoolworkManager.UI\Admin\CountSubmitWork.aspx.cs

............此处省略188个文件信息