testdbdlg.cpp

一个用ADO连接数据库（ACCESS）的简单实例

// testdbDlg.cpp : implementation file
//

#include "stdafx.h"
#include "testdb.h"
#include "testdbDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#import "c:\program files\common files\system\ado\msado15.dll" \
	no_namespace \
	rename ("EOF", "adoEOF")

/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CTestdbDlg dialog

CTestdbDlg::CTestdbDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTestdbDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTestdbDlg)
	m_cs1 = _T("");
	m_cs2 = _T("");
	m_cs3 = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTestdbDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTestdbDlg)
	DDX_Text(pDX, IDC_EDIT1, m_cs1);
	DDX_Text(pDX, IDC_EDIT2, m_cs2);
	DDX_Text(pDX, IDC_EDIT3, m_cs3);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTestdbDlg, CDialog)
	//{{AFX_MSG_MAP(CTestdbDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestdbDlg message handlers

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

	////Add codes	
	AfxOleInit();
	CoInitialize(NULL);












	// 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 CTestdbDlg::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 CTestdbDlg::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 CTestdbDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

//add
void CTestdbDlg::OnButton1() 
{
	UpdateData(TRUE);
 
	_ConnectionPtr m_pConnection;
	HRESULT hr=m_pConnection.CreateInstance(__uuidof(Connection));
	if(SUCCEEDED(hr))
	{
		m_pConnection->Open((_bstr_t)"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=db1.mdb","","",-1);
	}

	char sql[580];
	sprintf(sql, "INSERT INTO testtab VALUES(\'%s\',\'%s\',\'%s\')",m_cs1,m_cs2,m_cs3);
	_variant_t vNULL;
	m_pConnection->Execute((_bstr_t)sql,&vNULL,adCmdText);
	m_pConnection->Close();


	
}