customer.cs

客户资源是企业的宝贵资源

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

namespace MisResource.Components
{
	/// <summary>
	/// Customer 的摘要说明。
	/// </summary>
	public class Customer
	{
		public SqlDataReader GetCustomers()
		{
			///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_GetCustomers",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 GetSingleCustomer(int nCustomerID)
		{
			///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("@CustomerID",SqlDbType.Int,4,nCustomerID)
									   };
			
			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_GetSingleCustomer",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 AddCustomer(string sDepartName,int nCustType,int nBussType,string sAddress,
			string sPostalcode,int nAreaID,int nEmployeeID,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("@DepartName",SqlDbType.VarChar,200,sDepartName),
										   sqlHelper.CreateInParam("@CustType",SqlDbType.Int,4,nCustType),
										   sqlHelper.CreateInParam("@BussType",SqlDbType.Int,4,nBussType),
										   sqlHelper.CreateInParam("@Address",SqlDbType.VarChar,200,sAddress),
										   sqlHelper.CreateInParam("@Postalcode",SqlDbType.VarChar,200,sPostalcode),
										   sqlHelper.CreateInParam("@AreaID",SqlDbType.Int,4,nAreaID),
										   sqlHelper.CreateInParam("@EmployeeID",SqlDbType.Int,4,nEmployeeID),
										   sqlHelper.CreateInParam("@Remark",SqlDbType.VarChar,8000,sRemark)
									   };
			
			try
			{
				///执行存储过程
				return(sqlHelper.RunProc("Pr_AddCustomer",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 UpdateCustomer(int nCustomerID,string sDepartName,int nCustType,int nBussType,
			string sAddress,string sPostalcode,int nAreaID,int nEmployeeID,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("@CustomerID",SqlDbType.Int,4,nCustomerID),
										   sqlHelper.CreateInParam("@DepartName",SqlDbType.VarChar,200,sDepartName),
										   sqlHelper.CreateInParam("@CustType",SqlDbType.Int,4,nCustType),
										   sqlHelper.CreateInParam("@BussType",SqlDbType.Int,4,nBussType),
										   sqlHelper.CreateInParam("@Address",SqlDbType.VarChar,200,sAddress),
										   sqlHelper.CreateInParam("@Postalcode",SqlDbType.VarChar,200,sPostalcode),
										   sqlHelper.CreateInParam("@AreaID",SqlDbType.Int,4,nAreaID),
										   sqlHelper.CreateInParam("@EmployeeID",SqlDbType.Int,4,nEmployeeID),
										   sqlHelper.CreateInParam("@Remark",SqlDbType.VarChar,8000,sRemark)
									   };
			
			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_UpdateCustomer",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 DeleteCustomer(int nCustomerID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

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