odbcdemo1dlg.cpp

简单数据库入门实例ODBC访问ACCESS,大家下一下,对学习很有帮助

// ODBCDemo1Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "ODBCDemo1.h"
#include "ODBCDemo1Dlg.h"

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

#include "GIRLLIST.h"
/////////////////////////////////////////////////////////////////////////////
// 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()

/////////////////////////////////////////////////////////////////////////////
// CODBCDemo1Dlg dialog

CODBCDemo1Dlg::CODBCDemo1Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CODBCDemo1Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CODBCDemo1Dlg)
	m_Author = _T("");
	m_Info = _T("未连接！！");
	m_ISBN = _T("");
	m_Price = _T("");
	m_Title = _T("");
	m_Publisher = _T("");
	m_Yearpublish = _T("");
	cSQL=_T("");
	nID=1;
	cID=_T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CODBCDemo1Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CODBCDemo1Dlg)
	DDX_Text(pDX, IDC_AUTHOR, m_Author);
	DDX_Text(pDX, IDC_EDIT7, m_Info);
	DDX_Text(pDX, IDC_ISBN, m_ISBN);
	DDX_Text(pDX, IDC_PRICE, m_Price);
	DDX_Text(pDX, IDC_TITLE, m_Title);
	DDX_Text(pDX, IDC_PUBLISHER, m_Publisher);
	DDX_Text(pDX, IDC_YEARPUBLISH, m_Yearpublish);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CODBCDemo1Dlg, CDialog)
	//{{AFX_MSG_MAP(CODBCDemo1Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_CONNECT, OnConnect)
	ON_BN_CLICKED(IDC_NEXT, OnNext)
	ON_BN_CLICKED(IDC_PREVIOUS, OnPrevious)
	ON_BN_CLICKED(IDC_END, OnEnd)
	ON_BN_CLICKED(IDC_HOME, OnHome)
	ON_BN_CLICKED(IDC_DISCONNECT, OnDisconnect)
	ON_BN_CLICKED(IDC_INSERT, OnInsert)
	ON_BN_CLICKED(IDC_DELETE, OnDelete)
	ON_BN_CLICKED(IDC_EDIT, OnEdit)
	ON_BN_CLICKED(IDC_SAVE, OnSave)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CODBCDemo1Dlg message handlers

BOOL CODBCDemo1Dlg::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 CODBCDemo1Dlg::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 CODBCDemo1Dlg::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 CODBCDemo1Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CODBCDemo1Dlg::OnConnect() 
{
	// TODO: Add your control notification handler code here
	if (m_DB.IsOpen())
	{
		AfxMessageBox("数据源已打开!!");//报告错误
		m_Info="连接失败!!";
		return;
	}
	
	m_Set=new CRecordset(&m_DB);

	if(!m_DB.OpenEx(_T("DSN=ODBCDemo1"),0))//连接数据源
	{
		AfxMessageBox("打开数据源失败!!");//报告错误
		m_Info="连接失败!!";
		return;
	}
	
	if(!m_Set->IsOpen())
	{
	m_Set->Open(CRecordset::dynaset,_T("Select * from 基本信息"));//选择数据表并打开
	}
/*	CODBCFieldInfo FieldInfo;//存储字段信息的结构体
	short nFields;//存储字段数目
	nFields=m_Set->GetODBCFieldCount();//获得字段数目
	m_Set->GetODBCFieldInfo(short(1),FieldInfo);//获得字段信息
	m_Title=FieldInfo.m_strName;
	m_Set->GetODBCFieldInfo(short(2),FieldInfo);
	m_Publisher=FieldInfo.m_strName;
	m_Set->GetODBCFieldInfo(short(3),FieldInfo);
	m_ISBN=FieldInfo.m_strName;
	m_Set->GetODBCFieldInfo(short(4),FieldInfo);
	m_Price=FieldInfo.m_strName;
	m_Set->GetODBCFieldInfo(short(5),FieldInfo);
	m_Author=FieldInfo.m_strName;
	m_Set->GetODBCFieldInfo(short(7),FieldInfo);
	m_Yearpublish=FieldInfo.m_strName;
	m_Set->GetODBCFieldInfo(short(0),FieldInfo);
*/

    if(m_Set->IsEOF())//记录集是否为空
	{
		AfxMessageBox("记录集没有记录");
		return;
	}
	m_Set->MoveFirst();//第一个记录
	m_Set->GetFieldValue((short)1,m_Title);//把第0 列赋给此控件
    m_Set->GetFieldValue((short)2,m_Publisher);//把第1 列赋给此控件
    m_Set->GetFieldValue((short)3,m_ISBN);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)4,m_Price);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)5,m_Author);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)7,m_Yearpublish);//把第2 列赋给此控件

    m_Info="连接成功!!";

    UpdateData(FALSE);//更新对话框
    
	
}


void CODBCDemo1Dlg::OnNext() 
{
	if (!m_Set->IsOpen())
	{
		AfxMessageBox("没有打开数据库！！");
		return;
	}
	// TODO: Add your control notification handler code here
	m_Set->MoveNext();//第一个记录
	if (m_Set->IsEOF())
	{
		AfxMessageBox("已到了表的最后!!");
		m_Set->MovePrev();//第一个记录
		return;
	}
	
	m_Set->GetFieldValue((short)1,m_Title);//把第0 列赋给此控件
    m_Set->GetFieldValue((short)2,m_Publisher);//把第1 列赋给此控件
    m_Set->GetFieldValue((short)3,m_ISBN);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)4,m_Price);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)5,m_Author);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)7,m_Yearpublish);//把第2 列赋给此控件


    UpdateData(FALSE);//更新对话框
}

void CODBCDemo1Dlg::OnPrevious() 
{
	if (!m_Set->IsOpen())
	{
		AfxMessageBox("没有打开数据库！！");
		return;
	}
	// TODO: Add your control notification handler code here
	m_Set->MovePrev();//第一个记录
	if (m_Set->IsBOF())
	{
		AfxMessageBox("已到了表的开始!!");
		m_Set->MoveNext();//第一个记录
		return;
	}


	m_Set->GetFieldValue((short)1,m_Title);//把第0 列赋给此控件
    m_Set->GetFieldValue((short)2,m_Publisher);//把第1 列赋给此控件
    m_Set->GetFieldValue((short)3,m_ISBN);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)4,m_Price);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)5,m_Author);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)7,m_Yearpublish);//把第2 列赋给此控件


    UpdateData(FALSE);//更新对话框
	
}

void CODBCDemo1Dlg::OnEnd() 
{
	if (!m_Set->IsOpen())
	{
		AfxMessageBox("没有打开数据库！！");
		return;
	}
	// TODO: Add your control notification handler code here
	m_Set->MoveLast();//第一个记录
	m_Set->GetFieldValue((short)1,m_Title);//把第0 列赋给此控件
    m_Set->GetFieldValue((short)2,m_Publisher);//把第1 列赋给此控件
    m_Set->GetFieldValue((short)3,m_ISBN);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)4,m_Price);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)5,m_Author);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)7,m_Yearpublish);//把第2 列赋给此控件


    UpdateData(FALSE);//更新对话框
		
}

void CODBCDemo1Dlg::OnHome() 
{
	if (!m_Set->IsOpen())
	{
		AfxMessageBox("没有打开数据库！！");
		return;
	}
	// TODO: Add your control notification handler code here
	m_Set->MoveFirst();//第一个记录
	m_Set->GetFieldValue((short)1,m_Title);//把第0 列赋给此控件
    m_Set->GetFieldValue((short)2,m_Publisher);//把第1 列赋给此控件
    m_Set->GetFieldValue((short)3,m_ISBN);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)4,m_Price);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)5,m_Author);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)7,m_Yearpublish);//把第2 列赋给此控件


    UpdateData(FALSE);//更新对话框
	
}

void CODBCDemo1Dlg::OnDisconnect() 
{
	// TODO: Add your control notification handler code here
	m_Set->Close();
	m_DB.Close();
	m_Title=_T("");
    m_Publisher=_T("");
    m_ISBN=_T("");
	m_Price=_T("");
	m_Author=_T("");
	m_Yearpublish=_T("");
	m_Info=_T("已断开！");

	UpdateData(FALSE);
}

void CODBCDemo1Dlg::OnInsert() 
{
	// TODO: Add your control notification handler code here
	m_Title=_T("");
    m_Publisher=_T("");
    m_ISBN=_T("");
	m_Price=_T("");
	m_Author=_T("");
	m_Yearpublish=_T("");
    UpdateData(FALSE);

	//m_Set->m_pDatabase->ExecuteSQL("CREATE TABLE newtable(StuID int NOT NULL,StuClass varchar(10))");

}


//DEL void CODBCDemo1Dlg::OnUpdate() 
//DEL {
//DEL 	// TODO: Add your control notification handler code here
//DEL /*    UpdateData(FALSE);
//DEL 	m_Set->AddNew();
//DEL     m_Set->Update();
//DEL 	//重新获得数据
//DEL     m_Set->Requery();
//DEL     UpdateData(FALSE);*/
//DEL }

void CODBCDemo1Dlg::OnDelete() 
{
	// TODO: Add your control notification handler code here
	//m_Set->Delete();

	/*nID=m_Set->GetRecordCount();
	CString dd;
	dd.Format("%d",nID);
	AfxMessageBox(dd);*/
	
	m_Set->GetFieldValue((short)0,cID);
	

	cSQL.Format("DELETE FROM 基本信息 WHERE 基本信息.图书ID=%s",cID);

	
	m_Set->m_pDatabase->ExecuteSQL(cSQL);
	if (!m_Set->Requery())
	{
		AfxMessageBox("数据更新错误！");
	}

	m_Set->GetFieldValue((short)1,m_Title);//把第0 列赋给此控件
    m_Set->GetFieldValue((short)2,m_Publisher);//把第1 列赋给此控件
    m_Set->GetFieldValue((short)3,m_ISBN);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)4,m_Price);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)5,m_Author);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)7,m_Yearpublish);//把第2 列赋给此控件

    UpdateData(FALSE);//更新对话框

}

void CODBCDemo1Dlg::OnEdit() 
{
	// TODO: Add your control notification handler code here
	GIRLLIST list;
	list.DoModal();
}

void CODBCDemo1Dlg::OnSave() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	//cSQL="Insert into 基本信息 (标题,版权日期,ISBN,价格,作者,出版商) values ("+m_Title+","+
	//	m_Publisher+","+m_ISBN+","+m_Price+","+m_Author+","+m_Yearpublish+")";

	cSQL.Format("Insert into 基本信息 (标题,版权日期,ISBN,价格,作者,出版商) values ('%s','%s','%s','%s','%s','%s')",m_Title,m_Publisher,m_ISBN,m_Price,m_Author,m_Yearpublish);
	
	m_Set->m_pDatabase->ExecuteSQL(cSQL);
	if (!m_Set->Requery())
	{
		AfxMessageBox("数据更新错误！");
	}
	m_Set->MoveLast();//第一个记录
	m_Set->GetFieldValue((short)1,m_Title);//把第0 列赋给此控件
    m_Set->GetFieldValue((short)2,m_Publisher);//把第1 列赋给此控件
    m_Set->GetFieldValue((short)3,m_ISBN);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)4,m_Price);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)5,m_Author);//把第2 列赋给此控件
	m_Set->GetFieldValue((short)7,m_Yearpublish);//把第2 列赋给此控件

    UpdateData(FALSE);//更新对话框
	
}