changepassword.cpp

图书管理系统,自己编的,希望高手多指教.

// ChangePassword.cpp : implementation file
//

#include "stdafx.h"
#include "library.h"
#include "ChangePassword.h"
#include "LoginDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CChangePassword dialog


CChangePassword::CChangePassword(CWnd* pParent /*=NULL*/)
	: CDialog(CChangePassword::IDD, pParent)
{
	//{{AFX_DATA_INIT(CChangePassword)
	m_YANZHENGMA = _T("");
	m_OldPassword = _T("");
	m_NewPassword = _T("");
	m_NewPassword1 = _T("");
	//}}AFX_DATA_INIT
}


void CChangePassword::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CChangePassword)
	DDX_Text(pDX, IDC_EDIT1, m_YANZHENGMA);
	DDV_MaxChars(pDX, m_YANZHENGMA, 4);
	DDX_Text(pDX, IDC_EDIT2, m_OldPassword);
	DDX_Text(pDX, IDC_EDIT3, m_NewPassword);
	DDX_Text(pDX, IDC_EDIT4, m_NewPassword1);
	//}}AFX_DATA_MAP
}


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

/////////////////////////////////////////////////////////////////////////////
// CChangePassword message handlers

BOOL CChangePassword::OnInitDialog() 
{
	CDialog::OnInitDialog();
	ChangePicture();
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CChangePassword::OnOK() 
{
	// TODO: Add extra validation here
	CString sqlStr;
	
	UpdateData();
	//sqlStr = "SELECT RESULT FROM YANZHENG WHERE NUMBER = ";
	//sqlStr += index;
	sqlStr.Format("SELECT * FROM YANZHENG WHERE NUMBER = %d",index);
	if(!YZDataSet.Open(AFX_DB_USE_DEFAULT_TYPE,sqlStr))
	{
		AfxMessageBox("表打开失败");
		return;
	}
	m_YANZHENGMA.MakeUpper();
	if(YZDataSet.m_RESULT==m_YANZHENGMA)
	{
		m_YANZHENGMA=_T("");
		sqlStr.Format("SELECT * FROM READER WHERE READER_ID = '%s'",LoginID);
		if(!ReadDataSet.Open(CRecordset::dynaset,sqlStr))
		{
			AfxMessageBox("表打开失败");
			return;
		}
		if(ReadDataSet.m_READER_PASSWORD == m_OldPassword)
		{
			if(m_NewPassword == m_NewPassword1)
			{
				ChangePassword();
				m_NewPassword = _T("");
				m_NewPassword1 = _T("");
				m_YANZHENGMA = _T("");
				m_OldPassword = _T("");
				ChangePicture();
			}
			else
			{
				MessageBox("输入的两次新密码不相同");
				ReadDataSet.Close();
				YZDataSet.Close();
				m_NewPassword = _T("");
				m_NewPassword1 = _T("");
				m_YANZHENGMA = _T("");
				m_OldPassword = _T("");
				ChangePicture();
				UpdateData(false);
				return;
			}
		}
		else
		{
			MessageBox("旧密码错误");
			ReadDataSet.Close();
			YZDataSet.Close();
			m_NewPassword = _T("");
			m_NewPassword1 = _T("");
			m_YANZHENGMA = _T("");
			m_OldPassword = _T("");	
			UpdateData(false);
			ChangePicture();
			return;
		}
	}
	else
	{
		MessageBox("验证码错误");
		ReadDataSet.Close();
		YZDataSet.Close();
		m_NewPassword = _T("");
		m_NewPassword1 = _T("");
		m_YANZHENGMA = _T("");
		m_OldPassword = _T("");
		UpdateData(false);
		ChangePicture();	
		return;
	}
	ReadDataSet.Close();
	YZDataSet.Close();
	CDialog::OnOK();
}

void CChangePassword::ChangePicture()
{
	CStatic   *ptr; 
	// TODO: Add extra initialization here
	//HBITMAP hmap = (HBITMAP)::LoadImage(NULL, "c:\\11.bmp ",IMAGE_BITMAP,0,0,LR_LOADFROMFILE | LR_DEFAULTSIZE); 
	//if( hmap == NULL ) 
	//	return FALSE;
	CBitmap hmap;
	srand((unsigned)time(NULL)); 
	index = rand()%12+1;
	switch(index)
	{
	case 1:
		hmap.LoadBitmap(IDB_YZ1);
		break;
	case 2:
		hmap.LoadBitmap(IDB_YZ2);
		break;
	case 3:
		hmap.LoadBitmap(IDB_YZ3);
		break;
	case 4:
		hmap.LoadBitmap(IDB_YZ4);
		break;
	case 5:
		hmap.LoadBitmap(IDB_YZ5);
		break;
	case 6:
		hmap.LoadBitmap(IDB_YZ6);
		break;
	case 7:
		hmap.LoadBitmap(IDB_YZ7);
		break;
	case 8:
		hmap.LoadBitmap(IDB_YZ8);
		break;
	case 9:
		hmap.LoadBitmap(IDB_YZ9);
		break;
	case 10:
		hmap.LoadBitmap(IDB_YZ10);
		break;
	case 11:
		hmap.LoadBitmap(IDB_YZ11);
		break;
	case 12:
		hmap.LoadBitmap(IDB_YZ12);
	}
	ptr = (CStatic*)GetDlgItem(IDC_SCREEN1); 
	ptr-> ModifyStyle(0xF, SS_BITMAP |SS_CENTERIMAGE); 
	ptr->SetBitmap((HBITMAP)hmap.Detach());
}



void CChangePassword::ChangePassword()
{

	if(ReadDataSet.CanUpdate()) 
	{
		ReadDataSet.Edit();
		ReadDataSet.m_READER_PASSWORD = m_NewPassword;
		ReadDataSet.Update(); 
	}
	ReadDataSet.Requery();
}