logindlg.cpp

这个是我写的图书馆管理系统

// LogInDlg.cpp : implementation file
//

#include "stdafx.h"
#include "library.h"

#include "AdminRS.h"

#include "LogInDlg.h"


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

/////////////////////////////////////////////////////////////////////////////
// CLogInDlg dialog


CLogInDlg::CLogInDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CLogInDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLogInDlg)
	m_strAdminID = _T("");
	m_strAdminPW = _T("");
	//}}AFX_DATA_INIT
}


void CLogInDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLogInDlg)
	DDX_Text(pDX, IDC_ADMIN_ID, m_strAdminID);
	DDX_Text(pDX, IDC_ADMIN_PW, m_strAdminPW);
	//}}AFX_DATA_MAP
}


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

/////////////////////////////////////////////////////////////////////////////
// CLogInDlg message handlers

void CLogInDlg::OnOK() 
{
	// TODO: Add extra validation here
	UpdateData();
	if (LoginAllow())
	{
		AfxMessageBox("登录成功，欢迎使用图书馆管理系统!");
        CDialog::OnOK();
		return;
	}		
}

bool CLogInDlg::LoginAllow()
{
	if (!m_adminSet.IsOpen())
		m_adminSet.Open();

	m_adminSet.m_strFilter.Format(" aid='%s' and apasswd='%s' ",m_strAdminID,m_strAdminPW);
	m_adminSet.Requery();

	if (m_adminSet.IsEOF())
	{
		AfxMessageBox("登录失败，管理员帐号或密码错误");
		return false;
	}
	CLibraryApp *App = (CLibraryApp *)AfxGetApp();
	App->admin_ID = m_strAdminID;
	return true;
}