logindlg.cpp

这是是一个居于文档

// LoginDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Guesthouse.h"
#include "LoginDlg.h"
#include "userSet.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_OldPwd = _T("");
	m_NewPwd1 = _T("");
	m_NewPwd2 = _T("");
	m_UserName = _T("");
	//}}AFX_DATA_INIT
}


void CLoginDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CLoginDlg)
	DDX_Text(pDX, IDC_EDIT2, m_OldPwd);
	DDX_Text(pDX, IDC_EDIT3, m_NewPwd1);
	DDX_Text(pDX, IDC_EDIT4, m_NewPwd2);
	DDX_Text(pDX, IDC_EDIT1, m_UserName);
	//}}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
	//将对话框中编辑框的数据读取到成员变量中
	UpdateData(TRUE);
	//检查数据有效性
	if(m_UserName=="")
	{
		MessageBox("请输入用户名");
		return;		
	}
	if(m_OldPwd=="")
	{
		MessageBox("请输入旧密码");
		return;
	}
	if(m_NewPwd1=="")
	{
		MessageBox("请输入新密码");
		return;
	}
	if(m_NewPwd1 != m_NewPwd2)
	{
		MessageBox("两次输入新密码不同");
		return;
	}
	//定义CuserSet对象，用于从表sysuser中读取数据
	m_pUSet = new CuserSet();
	UpdateData();
	m_UserName.Replace("'"," ");
	m_OldPwd.Replace("'"," ");
	CString str;
	str.Format(" user_ID = '%s' and user_PWD = '%s'",m_UserName,m_OldPwd);
	m_pUSet->m_strFilter = str;
	m_pUSet->Open();
	if (!m_pUSet->IsEOF()) {
		m_pUSet->Close();
		CDialog::OnOK();
	}
	else
	{
		m_pUSet->Close();
		MessageBox("用户名或密码错误！");
	}
	if(!m_pUSet->IsOpen())
		m_pUSet->Open();
	else
		m_pUSet->Requery();
	//修改记录
	m_pUSet->Edit();

	m_pUSet->m_user_PWD=m_NewPwd1;
	m_pUSet->Update();
	m_pUSet->Close();
	MessageBox("密码修改成功，下次登录请使用新密码");
	
	CDialog::OnOK();
}