xiugaimimadlg.cpp

是我大学事情开发的一个很经典的案例

// xiugaimimaDlg.cpp : implementation file
//

#include "stdafx.h"
#include "pmz.h"
#include "xiugaimimaDlg.h"
#include "pmzDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// xiugaimimaDlg dialog

extern CString user_name;
xiugaimimaDlg::xiugaimimaDlg(CWnd* pParent /*=NULL*/)
	: CDialog(xiugaimimaDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(xiugaimimaDlg)
	m_oldmima = _T("");
	m_newmima1 = _T("");
	m_newmima2 = _T("");
	//}}AFX_DATA_INIT
	m_pdb=new CDatabase;          
	m_pdb->Open( NULL, FALSE, FALSE,mydb);
}

xiugaimimaDlg::~xiugaimimaDlg()
{m_pdb->Close();
delete m_pdb;
}
void xiugaimimaDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(xiugaimimaDlg)
	DDX_Text(pDX, IDC_EDIT1, m_oldmima);
	DDX_Text(pDX, IDC_EDIT2, m_newmima1);
	DDX_Text(pDX, IDC_EDIT3, m_newmima2);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(xiugaimimaDlg, CDialog)
	//{{AFX_MSG_MAP(xiugaimimaDlg)
	ON_BN_CLICKED(IDC_BUTTON1, Onxiugaimima)
	ON_BN_CLICKED(IDC_BUTTON2, Onquxiao)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// xiugaimimaDlg message handlers

void xiugaimimaDlg::Onxiugaimima() 
{
    UpdateData(TRUE);	  
	m_oldmima.TrimLeft();
	m_oldmima.TrimRight();
	if(	m_oldmima.GetLength()<1) 
	{
		AfxMessageBox("旧密码不能为空！");
		return;
	}
	m_newmima1.TrimLeft();
	m_newmima1.TrimRight();
	if(	m_newmima1.GetLength()<1) 
	{
		AfxMessageBox("新密码不能为空!");
		return;
	}
	m_newmima2.TrimLeft();
	m_newmima2.TrimRight();
	if(	m_newmima2.GetLength()<1) 
	{
		AfxMessageBox("新密码不能为空!");
		return;
	}
	if(	m_newmima1!=m_newmima2) 
	{
		AfxMessageBox("两次密码输入不一样,请重新输入!");
		this->GetDlgItem(IDC_EDIT2)->SetWindowText("");
	    this->GetDlgItem(IDC_EDIT3)->SetWindowText("");
		return;
	}

    CString str5="select * from S_info where S_no='"+user_name+"'   ";
    m_precordset=new S_infodb(m_pdb);
    m_precordset->Open(S_infodb::snapshot,str5);
    CString mima,name;
    mima=m_precordset->m_S_mima;
    name=m_precordset->m_S_name;
    if(	m_oldmima!=mima) 
	{
		AfxMessageBox("旧密码输入错误!");
		this->GetDlgItem(IDC_EDIT1)->SetWindowText("");
		return;
	}
    AfxMessageBox(name+"同学,你的密码将被修改,继续吗?");

	CString str,str0,str1,str2,str4;
	str=user_name;
	str0=m_oldmima;
	str1=m_newmima1;
	str2=m_newmima2;
    
	m_precordset=new S_infodb(m_pdb);
	str4="update S_info set  S_mima='"+str1+"'where S_no='"+str+"' ";
	m_pdb->ExecuteSQL(str4);
	AfxMessageBox(name+"你的密码修改成功! 下次登录使用新密码");
	delete m_precordset;	
	this->GetDlgItem(IDC_EDIT1)->SetWindowText("");
	this->GetDlgItem(IDC_EDIT2)->SetWindowText("");
	this->GetDlgItem(IDC_EDIT3)->SetWindowText("");  	
}

void xiugaimimaDlg::Onquxiao() 
{
	CDialog::OnCancel();	
}