carddeletedlg.cpp

mysql+visual C++编写的mini图书馆数据库管理系统

// CardDeleteDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Library.h"
#include "CardRS.h"
#include "CardDeleteDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CCardDeleteDlg dialog


CCardDeleteDlg::CCardDeleteDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCardDeleteDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCardDeleteDlg)
	m_cardNum = _T("");
	//}}AFX_DATA_INIT
}


void CCardDeleteDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCardDeleteDlg)
	DDX_Text(pDX, IDC_CARD_NUM, m_cardNum);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CCardDeleteDlg, CDialog)
	//{{AFX_MSG_MAP(CCardDeleteDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCardDeleteDlg message handlers

void CCardDeleteDlg::OnOK() 
{
	// TODO: Add extra validation here
	if(!m_cardSet.IsOpen()){
		m_cardSet.Open();
	}
	UpdateData();
	m_cardSet.m_strFilter.Format("cno='%s'",m_cardNum);
	m_cardSet.Requery();
	if(m_cardSet.IsEOF()){
		AfxMessageBox("对不起，您输入的卡号不存在或已被注销！");
		return;
	}
	m_cardSet.Delete();
	AfxMessageBox("注销图书证成功");
	CDialog::OnOK();
}