teacher.cs

《精通ASP.NET2.0网络应用系统开发》书中的源码

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using SQLHelper; 

namespace StudentManager
{
	/// <summary>
	/// Summary description for Teacher
	/// </summary>
	public class Teacher
	{
		public SqlDataReader GetTeachers()
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///定义保存从数据库获取的结果的DataReader
			SqlDataReader dr = null;

			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_GetTeachers",out dr);
			}
			catch (Exception ex)
			{
				///抛出执行数据库异常
				SystemError.CreateErrorLog(ex.Message);
				throw new Exception(ex.Message,ex);
			}

			///返回从数据库获取的结果
			return (dr);
		}

		public SqlDataReader GetSingleTeacher(int nTeacherID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///定义保存从数据库获取的结果的DataReader
			SqlDataReader dr = null;

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
										   sqlHelper.CreateInParam("@TeacherID",SqlDbType.Int,4,nTeacherID)
									   };

			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_GetSingleTeacher",paramList,out dr);
			}
			catch (Exception ex)
			{
				///抛出执行数据库异常
				SystemError.CreateErrorLog(ex.Message);
				throw new Exception(ex.Message,ex);
			}

			///返回从数据库获取的结果
			return (dr);
		}

		public int AddTeacher(string sName,int nAge,string sAddress,string sPhone,DateTime dBirthday,
			DateTime dHireDate,int nDepartmentID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
				sqlHelper.CreateInParam("@Name",SqlDbType.VarChar,200,sName),	
				sqlHelper.CreateInParam("@Age",SqlDbType.Int,4,nAge),					  
				sqlHelper.CreateInParam("@Address",SqlDbType.VarChar,200,sAddress),
				sqlHelper.CreateInParam("@Phone",SqlDbType.VarChar,200,sPhone),
				sqlHelper.CreateInParam("@Birthday",SqlDbType.DateTime,8,dBirthday),
				sqlHelper.CreateInParam("@HireDate",SqlDbType.DateTime,8,dHireDate),
				sqlHelper.CreateInParam("@DepartmentID",SqlDbType.Int,4,nDepartmentID)
			};

			try
			{
				///执行存储过程
				return (sqlHelper.RunProc("Pr_AddTeacher",paramList));
			}
			catch (Exception ex)
			{
				///抛出执行数据库异常
				SystemError.CreateErrorLog(ex.Message);
				throw new Exception(ex.Message,ex);
			}
		}

		public void UpdateTeacher(int nTeacherID,string sName,int nAge,string sAddress,
			string sPhone,DateTime dBirthday,DateTime dHireDate,int nDepartmentID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
				sqlHelper.CreateInParam("@TeacherID",SqlDbType.Int,4,nTeacherID),
                sqlHelper.CreateInParam("@Name",SqlDbType.VarChar,200,sName),	
				sqlHelper.CreateInParam("@Age",SqlDbType.Int,4,nAge),					  
				sqlHelper.CreateInParam("@Address",SqlDbType.VarChar,200,sAddress),
				sqlHelper.CreateInParam("@Phone",SqlDbType.VarChar,200,sPhone),
				sqlHelper.CreateInParam("@Birthday",SqlDbType.DateTime,8,dBirthday),
				sqlHelper.CreateInParam("@HireDate",SqlDbType.DateTime,8,dHireDate),
				sqlHelper.CreateInParam("@DepartmentID",SqlDbType.Int,4,nDepartmentID)
			};

			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_UpdateTeacher",paramList);
			}
			catch (Exception ex)
			{
				///抛出执行数据库异常
				SystemError.CreateErrorLog(ex.Message);
				throw new Exception(ex.Message,ex);
			}
		}

		public void DeleteTeacher(int nTeacherID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
										   sqlHelper.CreateInParam("@TeacherID",SqlDbType.Int,4,nTeacherID)
									   };

			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_DeleteTeacher",paramList);
			}
			catch (Exception ex)
			{
				///抛出执行数据库异常
				SystemError.CreateErrorLog(ex.Message);
				throw new Exception(ex.Message,ex);
			}
		}
	}
}