picture.cs

来自「《精通ASP.NET2.0网络应用系统开发》书中的源码」· CS 代码 · 共 208 行

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 OfficeAutomatization
{
	/// <summary>
	/// Summary description for Picture
	/// </summary>
	public class Picture
	{
		public SqlDataReader GetPictures()
		{
			///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_GetPictures",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 GetPictureByBook(int nBookID)
		{
			///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("@BookID",SqlDbType.Int,4,nBookID)
									   };

			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_GetPictureByBook",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 SqlDataReader GetSinglePicture(int nPictureID)
		{
			///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("@PictureID",SqlDbType.Int,4,nPictureID)
									   };

			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_GetSinglePicture",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 AddPicture(int nBookID,string sDesn,string sUrl,string sPictureType,
			int nIsShow,string sRemark)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
				sqlHelper.CreateInParam("@BookID",SqlDbType.Int,4,nBookID),
				sqlHelper.CreateInParam("@Desn",SqlDbType.VarChar,200,sDesn),
				sqlHelper.CreateInParam("@Url",SqlDbType.VarChar,200,sUrl),
				sqlHelper.CreateInParam("@PictureType",SqlDbType.VarChar,200,sPictureType),
				sqlHelper.CreateInParam("@IsShow",SqlDbType.Int,4,nIsShow),
				sqlHelper.CreateInParam("@Remark",SqlDbType.VarChar,8000,sRemark)
			};

			try
			{
				///执行存储过程
				return (sqlHelper.RunProc("Pr_AddPicture",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 UpdatePicture(int nPictureID,int nBookID,string sDesn,string sUrl,
			string sPictureType,int nIsShow,string sRemark)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
				sqlHelper.CreateInParam("@PictureID",SqlDbType.Int,4,nPictureID),
               sqlHelper.CreateInParam("@BookID",SqlDbType.Int,4,nBookID),
				sqlHelper.CreateInParam("@Desn",SqlDbType.VarChar,200,sDesn),
				sqlHelper.CreateInParam("@Url",SqlDbType.VarChar,200,sUrl),
				sqlHelper.CreateInParam("@PictureType",SqlDbType.VarChar,200,sPictureType),
				sqlHelper.CreateInParam("@IsShow",SqlDbType.Int,4,nIsShow),
				sqlHelper.CreateInParam("@Remark",SqlDbType.VarChar,8000,sRemark)
			};

			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_UpdatePicture",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 UpdatePictureShow(int nPictureID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

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

			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_UpdatePicture",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 DeletePicture(int nPictureID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

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

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