busdlg.cpp

用MFC开发的车站管理查询系统可以添加,修改,删除等

// BusDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Bus.h"
#include "BusDlg.h"
#include "BusSet.h"
# include "BusAddDlg.h"
# include "BusEditDlg.h"
# include "BusDelDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

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

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()

/////////////////////////////////////////////////////////////////////////////
// CBusDlg dialog

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

void CBusDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CBusDlg)
	DDX_Control(pDX, IDC_BUTTONNUM, m_numinfo);
	DDX_Control(pDX, IDC_COMBONUM, m_num);
	DDX_Text(pDX, IDC_EDITSTA, m_bustation);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CBusDlg, CDialog)
	//{{AFX_MSG_MAP(CBusDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_NUM, OnNum)
	ON_BN_CLICKED(IDC_STA, OnSta)
	ON_BN_CLICKED(IDC_BUTTONNUM, OnButtonNum)
	ON_BN_CLICKED(IDC_BUS_ADD_BUTTON, OnBusAddButton)
	ON_BN_CLICKED(IDC_BUS_EDIT_BUTTON, OnBusEditButton)
	ON_BN_CLICKED(IDC_BUS_DEL_BUTTON, OnBusDelButton)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBusDlg message handlers

BOOL CBusDlg::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
	
	if(!m_database.Open(NULL,FALSE,FALSE,"ODBC;DSN=test1"))//对COMBO的DATA即下拉选项初始化
	{
        AfxMessageBox("Failed to open database");//          把数据库中含有的车次列如DATA；
	}
    m_set.Open(); 
    CString str;
    m_set.MoveFirst();
	while(!m_set.IsEOF())
	{
		str.Format("%ld",m_set.m_bus_number);
		m_num.AddString(str);
		m_set.MoveNext();
	}
	m_set.Close();
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CBusDlg::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 CBusDlg::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 CBusDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CBusDlg::OnNum() //                                  对车次进行查询
{
	// TODO: Add your control notification handler code here
    CString str;
	int i=m_num.GetCurSel();
	m_set.m_strFilter="[bus_station]";//                   WHERE子句
	if(m_set.IsOpen()){
		m_set.Close();
	}
	m_set.Open();
	m_set.MoveFirst();
    for (int j=0;j<i;j++)
	{
	  m_set.MoveNext();
	}
    str.Format("%ld",m_set.m_bus_number);
    SetDlgItemText(IDC_BUSNUM1,str);//                 格式化输出到IDC_BUSNUM1
	str.Format("%s",m_set.m_bus_station);
	SetDlgItemText(IDC_BUSSTA1,str);
	m_set.Close();	
}

void CBusDlg::OnSta() //                                车站查询
{
 	// TODO: Add your control notification handler code here
 	UpdateData(TRUE);
    m_set.m_strFilter="[bus_station] like '%"+m_bustation+"%'";
		
	if(!m_set.Open()||m_set.IsEOF())
	{
		AfxMessageBox("没有找到匹配数据,请重新输入");
	}
	
	CString str;
	int i=IDC_BUSNUM1,j=IDC_BUSSTA1;//              便于使用循环
	while(!m_set.IsEOF())
		{
			str.Format("%ld",m_set.m_bus_number);
			SetDlgItemText(i,str);
			str.Format("%s",m_set.m_bus_station);
			SetDlgItemText(j,str);
			i++;
			j++;
			m_set.MoveNext();
		}
	m_set.Close();
}

void CBusDlg::OnButtonNum() 
{
	// TODO: Add your control notification handler code here
   m_numinfo.SetWindowText("选择车次");	
 //  UpdateData(TRUE);
}
 

void CBusDlg::OnBusAddButton() 
{
	// TODO: Add your control notification handler code here
	CBusAddDlg tr;//车次增加DLG显示
	tr.DoModal();
	
}

void CBusDlg::OnBusEditButton() 
{
	// TODO: Add your control notification handler code here
	CBusEditDlg tr;//车次修改的DLG显示
	tr.DoModal();
	
}

void CBusDlg::OnBusDelButton() 
{
	// TODO: Add your control notification handler code here
	CBusDelDlg tr;//车次删除
	tr.DoModal();
	
}