listmaterial.cpp

VC++做的汽车维修管理系统,很有参考价值的,附上源码与说明文档.

// ListMaterial.cpp: implementation of the CListMaterial class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "CarService.h"
#include "ListMaterial.h"
#include "ADOConn.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CListMaterial::CListMaterial()
{
	ListId = 0;
	RegId = 0;
	MatId = 0;
	MatCount = 0.0;
	MatSum = 0.0;
	Memo = "";
}

CListMaterial::~CListMaterial()
{

}

// 判断指定的登记编号是否存在
int CListMaterial::HaveRegId(CString paraRegId)
{	
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();
	
	//设置SELECT语句
	_bstr_t vSQL;
	vSQL = "SELECT * FROM ListMaterial WHERE RegId=" + paraRegId;
	
	//执行SELECT语句
	_RecordsetPtr m_pRecordset;
	m_pRecordset = m_AdoConn.GetRecordSet(vSQL);
	
	if (m_pRecordset->adoEOF)
		return -1;
	else
		return 1;
	
	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}
// 判断是否存在项目编号
int CListMaterial::HaveMatId(CString paraMatId)
{	
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();
	
	//设置SELECT语句
	_bstr_t vSQL;
	vSQL = "SELECT * FROM ListMaterial WHERE MatId=" + paraMatId;
	
	//执行SELECT语句
	_RecordsetPtr m_pRecordset;
	m_pRecordset = m_AdoConn.GetRecordSet(vSQL);
	
	if (m_pRecordset->adoEOF)
		return -1;
	else
		return 1;
	
	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

// 插入操作
void CListMaterial::SqlInsert()
{
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();

	//设置INSERT语句
	CString sRegId,sMatId,sCount,sSum;
	sRegId.Format("%ld", RegId);
	sMatId.Format("%ld", MatId);
	sCount.Format("%lf", MatCount);
	sSum.Format("%lf", MatSum);
	_bstr_t vSQL;
	vSQL = "INSERT INTO ListMaterial VALUES(" + sRegId + "," + sMatId + "," 
		+ sCount + "," + sSum+ ",'"	+ Memo + "')";

	//执行INSERT语句
	m_AdoConn.ExecuteSQL(vSQL);	

	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

// 修改操作
void CListMaterial::SqlUpdate(CString paraId)
{
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();

	//设置UPDATE语句
	CString sRegId,sMatId,sCount,sSum;
	sRegId.Format("%ld", RegId);
	sMatId.Format("%ld", MatId);
	sCount.Format("%lf", MatCount);
	sSum.Format("%lf", MatSum);
	
	_bstr_t vSQL;
	vSQL = "UPDATE ListMaterial SET RegId=" + sRegId + ", MatId=" + sMatId
		+ ", MatCount=" + sCount + ", MatSum=" + sSum
		+ ", Memo='" + Memo + "' WHERE ListId = " + paraId;

	//执行UPDATE语句
	m_AdoConn.ExecuteSQL(vSQL);

	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}

// 删除操作
void CListMaterial::SqlDelete(CString paraId)
{
	//连接数据库
	ADOConn m_AdoConn;
	m_AdoConn.OnInitADOConn();

	//设置DELETE语句
	_bstr_t vSQL;
	vSQL = "DELETE FROM ListMaterial WHERE ListId = " + paraId;

	//执行DELETE语句
	m_AdoConn.ExecuteSQL(vSQL);	

	//断开与数据库的连接
	m_AdoConn.ExitConnect();
}