chpwd.cpp

一个很好的VC源代码

// ChPwd.cpp : implementation file
//

#include "stdafx.h"
#include "aoManage.h"
#include "ChPwd.h"
#include "MainFrm.h"

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

/////////////////////////////////////////////////////////////////////////////
// CChPwd dialog


CChPwd::CChPwd(CWnd* pParent /*=NULL*/)
	: CParentDlg(CChPwd::IDD, pParent)
{
	//{{AFX_DATA_INIT(CChPwd)
	m_strOldPwd = _T("");
	m_strNewPwd = _T("");
	m_strNewPwdS = _T("");
	//}}AFX_DATA_INIT
	m_pUser=new CDaoRecordset(&((CMainFrame*)AfxGetMainWnd())->m_db);
}


void CChPwd::DoDataExchange(CDataExchange* pDX)
{
	CParentDlg::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CChPwd)
	DDX_Text(pDX, IDC_EDIT1, m_strOldPwd);
	DDV_MaxChars(pDX, m_strOldPwd, 6);
	DDX_Text(pDX, IDC_EDIT2, m_strNewPwd);
	DDV_MaxChars(pDX, m_strNewPwd, 6);
	DDX_Text(pDX, IDC_EDIT3, m_strNewPwdS);
	DDV_MaxChars(pDX, m_strNewPwdS, 6);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CChPwd, CParentDlg)
	//{{AFX_MSG_MAP(CChPwd)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_WM_CLOSE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CChPwd message handlers

BOOL CChPwd::OnInitDialog() 
{
	CParentDlg::OnInitDialog();
	
	m_pUser->Open(AFX_DAO_USE_DEFAULT_TYPE,"select * from user");
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CChPwd::OnButton1() 
{
	UpdateData(TRUE);
	if (strcmp(m_strNewPwd,m_strNewPwdS))
	{
		MessageBox("两次输入的新密码应相同");
		return;
	}
	if (!m_strNewPwd.GetLength())
	{
		MessageBox("新设密码不能为空");
		return;
	}	
	if (m_strNewPwd.GetLength()<6)
	{
		MessageBox("新设密码长度应为6位");
		return;
	}
	CString strUser=((CMainFrame*)AfxGetMainWnd())->m_strOperator;
	CString strFilter;
	if (m_strOldPwd.GetLength())
		strFilter="name='"+strUser+"' and password='"+m_strOldPwd+"'";
	else
		strFilter="name='"+strUser+"' and password=NULL";
	if (!m_pUser->FindFirst(strFilter))
	{
		MessageBox("密码不正确");
		return;
	}
	m_pUser->Edit();
	m_pUser->SetFieldValue("password",(LPCTSTR)m_strNewPwd);
	m_pUser->Update();
	MessageBox("已成功更改密码");
	m_strOldPwd="";
	m_strNewPwd="";
	m_strNewPwdS="";
	UpdateData(FALSE);
}

void CChPwd::OnButton2() 
{
	OnCancel();	
}

void CChPwd::OnClose() 
{
	if (m_pUser->IsOpen())
		m_pUser->Close();
	CParentDlg::OnClose();
}