dblogindlg.cpp

简单的考试管理系统程序的数据库是用的ODBC Acess驱动的数据源,使用前要在系统中添加4个系统数据源.下面以添加user数据源为例说明一下添加方法:控制面板-->管理工具-->数据源ODBC选择

// DBLoginDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "DBLogin.h"
#include "DBLoginDlg.h"
#include "Customer.h"
#include "RegProFileDlg.h"
#include "ExamDlg.h"
#include "AdminDlg.h"
#include "TDDlg.h"
#include "SMEDlg.h"
#include ".\dblogindlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// 对话框数据
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
	DECLARE_MESSAGE_MAP()
public:
	afx_msg void OnBnClickedOk();
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	ON_BN_CLICKED(IDOK, OnBnClickedOk)
END_MESSAGE_MAP()


// CDBLoginDlg 对话框



CDBLoginDlg::CDBLoginDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CDBLoginDlg::IDD, pParent)
	, m_CUSTOMER_USER(_T(""))
	, m_CUSTOMER_PSWD(_T(""))
	, m_Admin(_T(""))
	, m_TD(_T(""))
	, m_SME(_T(""))
{
	LogCustomer = new Customer;
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	AdminPswd = "123";
	SMEPswd	= "789";
	TDPswd ="456";
}

void CDBLoginDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Text(pDX, IDC_CUSTOMER_USER, m_CUSTOMER_USER);
	DDX_Text(pDX, IDC_CUSTOMER_PSWD, m_CUSTOMER_PSWD);
	DDX_Text(pDX, IDC_EDIT3, m_Admin);
	DDX_Text(pDX, IDC_EDIT4, m_TD);
	DDX_Text(pDX, IDC_EDIT5, m_SME);
}

BEGIN_MESSAGE_MAP(CDBLoginDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(ID_CUSTOMER_LOG, OnBnClickedCustomerLog)
	ON_BN_CLICKED(ID_CUSTOMER_REGISTER, OnBnClickedCustomerRegister)
	ON_BN_CLICKED(ID_UPDATE, OnBnClickedUpdate)
	ON_BN_CLICKED(IDADMIN, OnBnClickedAdmin)
	ON_BN_CLICKED(IDTD, OnBnClickedTd)
	ON_BN_CLICKED(IDSME, OnBnClickedSme)
END_MESSAGE_MAP()


// CDBLoginDlg 消息处理程序

BOOL CDBLoginDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 将\“关于...\”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO: 在此添加额外的初始化代码
	
	return TRUE;  // 除非设置了控件的焦点，否则返回 TRUE
}

void CDBLoginDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CDBLoginDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作矩形中居中
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CDBLoginDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}



void CDBLoginDlg::OnBnClickedCustomerLog()
{
	// TODO: 在此添加控件通知处理程序代码
	UpdateData(true);
	if(LogCustomer->Login(m_CUSTOMER_USER,m_CUSTOMER_PSWD)){  //登陆成功
		//AfxMessageBox("ok");
		UpdateData(true);
		this->CloseWindow();
		this->m_CUSTOMER_PSWD="";
		UpdateData(false);
		ExamDlg *NewExam;
		NewExam = new ExamDlg();
		NewExam->m_Tester = LogCustomer->TakeExam();  //开始做题
		NewExam->DoModal();		
		
	}else 
		AfxMessageBox("用户名或密码错误");	
}

void CDBLoginDlg::OnBnClickedCustomerRegister()
{
	// TODO: 在此添加控件通知处理程序代码
	RegProFileDlg *NewRegDlg;
	NewRegDlg = new RegProFileDlg();
	if(NewRegDlg->DoModal() == IDOK)
	{
		if(LogCustomer->Rigister(
			NewRegDlg->m_ID,
			NewRegDlg->m_NAME,
			NewRegDlg->m_SEX,
			NewRegDlg->m_ADRESS,
			NewRegDlg->m_EMAIL,
			NewRegDlg->m_PSWD)){
				UpdateData(false);
				AfxMessageBox("添加用户成功");
			}else{
				AfxMessageBox("不能添加用户");
			}
	}
	delete NewRegDlg;
}	

void CDBLoginDlg::OnBnClickedUpdate()
{
	// TODO: 在此添加控件通知处理程序代码
	UpdateData(true);
	if(LogCustomer->Login(m_CUSTOMER_USER,m_CUSTOMER_PSWD)){
			RegProFileDlg *NewProDlg;
			NewProDlg = new RegProFileDlg();
			LogCustomer->GetInfo();
			NewProDlg->m_ID = LogCustomer->m_ID;
			NewProDlg->m_NAME = LogCustomer->m_NAME;
			NewProDlg->m_SEX = LogCustomer->m_SEX;
			NewProDlg->m_ADRESS = LogCustomer->m_ADRESS;
			NewProDlg->m_EMAIL = LogCustomer->m_EMAIL;
			NewProDlg->m_PSWD = LogCustomer->m_PSWD;
			if(NewProDlg->DoModal() == IDOK)
			{
				if(LogCustomer->UpdateProfile(
					NewProDlg->m_ID, 
					NewProDlg->m_NAME, 
					NewProDlg->m_SEX, 
					NewProDlg->m_ADRESS,
					NewProDlg->m_EMAIL,
					NewProDlg->m_PSWD)){
						UpdateData(false);
						AfxMessageBox("更新资料成功");
					}else{
						AfxMessageBox("不能更新资料");
					}
			}
			delete NewProDlg;
	}else
        AfxMessageBox("用户名或密码错误");

}

void CDBLoginDlg::OnBnClickedAdmin()
{
	// TODO: 在此添加控件通知处理程序代码
	UpdateData(true);
	if(this->m_Admin == this->AdminPswd){
		AdminDlg *NewAdminDlg;
		NewAdminDlg = new AdminDlg();
		this->m_Admin="";
		UpdateData(false);
		this->CloseWindow();
		NewAdminDlg->DoModal();
	}else
		AfxMessageBox("密码错误");
}

void CDBLoginDlg::OnBnClickedTd()
{
	// TODO: 在此添加控件通知处理程序代码
		UpdateData(true);
		if(this->m_TD == this->TDPswd){
			TDDlg *NewTDDlg;
			NewTDDlg = new TDDlg();
			this->m_TD="";
			UpdateData(false);
			this->CloseWindow();
			NewTDDlg->DoModal();
		}	
	else
		AfxMessageBox("密码错误");
}

void CDBLoginDlg::OnBnClickedSme()
{
	// TODO: 在此添加控件通知处理程序代码
		UpdateData(true);
	if(this->m_SME == this->SMEPswd)
	{
		SMEDlg *NewSMEDlg;
		NewSMEDlg = new SMEDlg();
		this->m_SME="";
		UpdateData(false);
		this->CloseWindow();
		NewSMEDlg->DoModal();
	}	
	else
		AfxMessageBox("密码错误");
}

void CAboutDlg::OnBnClickedOk()
{
	// TODO: 在此添加控件通知处理程序代码
	OnOK();
}