area.cs

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using System;
using System.Data;
using System.Data.SqlClient;
using SQLHelper;

namespace MisResource.Components
{
	/// <summary>
	/// Area 的摘要说明。
	/// </summary>
	public class Area
	{
		public SqlDataReader GetAreas()
		{
			///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_GetAreas",out dr);
			}
			catch(Exception ex)
			{
				///抛出执行数据库异常
				SystemError.SystemLog(ex.Message);
				throw new Exception(ex.Message,ex);
			}			

			///返回从数据库获取的结果
			return(dr);
		}

		public SqlDataReader GetSingleArea(int nAreaID)
		{
			///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("@AreaID",SqlDbType.Int,4,nAreaID)
									   };
			
			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_GetSingleArea",paramList,out dr);
			}
			catch(Exception ex)
			{
				///抛出执行数据库异常
				SystemError.SystemLog(ex.Message);
				throw new Exception(ex.Message,ex);
			}			

			///返回从数据库获取的结果
			return(dr);
		}

		public int AddArea(string sAreaName,int nAreaType,int nParentID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
										   sqlHelper.CreateInParam("@AreaName",SqlDbType.VarChar,200,sAreaName),
										   sqlHelper.CreateInParam("@AreaType",SqlDbType.Int,4,nAreaType),
										   sqlHelper.CreateInParam("@ParentID",SqlDbType.Int,4,nParentID)
									   };
			
			try
			{
				///执行存储过程
				return(sqlHelper.RunProc("Pr_AddArea",paramList));
			}
			catch(Exception ex)
			{
				///抛出执行数据库异常
				SystemError.SystemLog(ex.Message);
				throw new Exception(ex.Message,ex);
			}			
		}

		public void UpdateArea(int nAreaID,string sAreaName,int nAreaType,int nParentID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
										   sqlHelper.CreateInParam("@AreaID",SqlDbType.Int,4,nAreaID),
										   sqlHelper.CreateInParam("@AreaName",SqlDbType.VarChar,200,sAreaName),
										   sqlHelper.CreateInParam("@AreaType",SqlDbType.Int,4,nAreaType),
										   sqlHelper.CreateInParam("@ParentID",SqlDbType.Int,4,nParentID)
									   };

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

		public void DeleteArea(int nAreaID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
										   sqlHelper.CreateInParam("@AreaID",SqlDbType.Int,4,nAreaID)
									   };
			
			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_DeleteArea",paramList);
			}
			catch(Exception ex)
			{
				///抛出执行数据库异常
				SystemError.SystemLog(ex.Message);
				throw new Exception(ex.Message,ex);
			}			
		}
	}
}