coursedlg.cpp

数据库编程

// CourseDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Course.h"
#include "CourseDlg.h"
#include "Student_dlg.h"
#include "Teacher_dlg.h"
#include "Administrator_dlg.h"
#include "Dlg_About.h"
#include "Student.h"
#include "Teacher.h"
#include "Administrator.h"
#include "Manager.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

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

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

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

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

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCourseDlg dialog

CCourseDlg::CCourseDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCourseDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCourseDlg)
	m_Id = _T("");
	m_Password = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CCourseDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCourseDlg)
	DDX_Control(pDX, IDC_STATUS_COMBO, m_Status);
	DDX_Text(pDX, IDC_USERNAME_EDIT, m_Id);
	DDX_Text(pDX, IDC_PASSWORD_EDIT, m_Password);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCourseDlg, CDialog)
	//{{AFX_MSG_MAP(CCourseDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_LOGIN_BUTTON, OnLoginButton)
	ON_BN_CLICKED(IDC_ABOUT_BUTTON, OnAboutButton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCourseDlg message handlers

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

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	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);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CCourseDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		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;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CCourseDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CCourseDlg::OnLoginButton() 
{
	CManager manager;
	int line;
	CString s="";
	line=m_Status.GetCurSel();

	if(line<0){
        AfxMessageBox("请选择正确的登录身份!");
		return ;
    }

	UpdateData(true);
	// TODO: Add your control notification handler code here
	if(line==0)
	{
		CAdministrator_dlg a_dlg;
		
		a_dlg.administrator.Set(s,m_Id,m_Password);
		if(m.Search(a_dlg.administrator))
		{
			if(a_dlg.DoModal()==IDOK){}
		}
		else
		{
			AfxMessageBox("该管理员不存在或者是密码错误!");
		}
	}
	else if(line==1)
	{
		CTeacher_dlg t_dlg;
		t_dlg.teacher.Set(s,m_Id,m_Password);
		if(m.Search(t_dlg.teacher))
		{
			if(t_dlg.DoModal()==IDOK){}
		}
		else
		{
			AfxMessageBox("该老师不存在或者是密码错误!");
		}
		
	}
	else if(line==2)
	{
		CStudent_dlg s_dlg;
		s_dlg.student.Set(s,m_Id,m_Password,s);
		if(m.Search(s_dlg.student))
		{
			if(s_dlg.DoModal()==IDOK){}
		}
		else
		{
			AfxMessageBox("该学生不存在或者是密码错误!");
		}
		
	}
	else
	{}
	UpdateData(false);
}

void CCourseDlg::OnAboutButton() 
{
	// TODO: Add your control notification handler code here
	CDlg_About about;
	if(about.DoModal()==IDOK){};
}