testededlg.cpp

一个数据库测试实例

// TestEdeDlg.cpp : implementation file
//

#include "stdafx.h"
#include "TestEde.h"
#include "TestEdeDlg.h"

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

#define CONNSTR "Provider=SQLOLEDB; Server=WUSONG; Database=test; uid=sa; pwd=123;"
/////////////////////////////////////////////////////////////////////////////
// CTestEdeDlg dialog

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

void CTestEdeDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTestEdeDlg)
	DDX_Control(pDX, IDC_LIST2, m_ListB);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTestEdeDlg, CDialog)
	//{{AFX_MSG_MAP(CTestEdeDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButtonTest)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestEdeDlg message handlers

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

	// 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
}

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

void CTestEdeDlg::ConnectToDB()
{//连接数据库 CONNSTR
	BOOL fOK = m_dbConn.Open("test");
	if(fOK)
	AfxMessageBox("connect OK!");
} 


void CTestEdeDlg::Select()
{//执行SELECT语句
	char OutBuffer[600],LsBuf[300];
	CRecordset rec(&m_dbConn);
	int RecCount;
	BOOL fOK = rec.Open(CRecordset::forwardOnly,"select * from Eder_UserBase order by U_ID");
	int i;
	CString szResult;
	RecCount=0;

//wsprintf(LsBuf,"%d---",rec.GetODBCFieldCount());
//AfxMessageBox(LsBuf);

	while(!rec.IsEOF())
	{
	strcpy(OutBuffer,"");

	for(i=0;i<rec.GetODBCFieldCount();i++)
	{
	strcpy(LsBuf,"");
	szResult.Empty();
	rec.GetFieldValue((int)i,szResult);
	wsprintf(LsBuf,"%s*",szResult);
	strcat(OutBuffer,LsBuf);
	}

	m_ListB.AddString((LPCTSTR)OutBuffer);
	rec.MoveNext();
	RecCount++;
	}
	wsprintf(OutBuffer,"RecCount : %d\n",RecCount);
	AfxMessageBox(OutBuffer);
}



void CTestEdeDlg::OnButtonTest() 
{
	// TODO: Add your control notification handler code here
   ConnectToDB();
   Select();
}