11月10号数据库学习dlg.cpp

学习使用数据库时

// 11月10号数据库学习Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "11月10号数据库学习.h"
#include "11月10号数据库学习Dlg.h"

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



extern CMy1110App theApp;   

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

/////////////////////////////////////////////////////////////////////////////
// CMy1110Dlg dialog

CMy1110Dlg::CMy1110Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMy1110Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMy1110Dlg)
	m_name = _T("");
	m_age = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMy1110Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMy1110Dlg)
	DDX_Control(pDX, IDC_LIST, m_list);
	DDX_Text(pDX, IDC_NAME, m_name);
	DDX_Text(pDX, IDC_AGE, m_age);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMy1110Dlg, CDialog)
	//{{AFX_MSG_MAP(CMy1110Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_INSERT, OnInsert)
	ON_BN_CLICKED(IDC_REFRESH, OnRefresh)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMy1110Dlg message handlers

BOOL CMy1110Dlg::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

	m_list.InsertColumn(0,"姓名",LVCFMT_LEFT,100);
	m_list.InsertColumn(1,"年龄",LVCFMT_LEFT,100);



		// 使用ADO创建数据库记录集
	m_pRecordset.CreateInstance(__uuidof(Recordset));

	// 在ADO操作中建议语句中要常用try...catch()来捕获错误信息，
	// 因为它有时会经常出现一些想不到的错误。jingzhou xu
	try
	{
		m_pRecordset->Open("SELECT * FROM wxx",                // 查询DemoTable表中所有字段
							theApp.m_pConnection.GetInterfacePtr(),	 // 获取库接库的IDispatch指针
							adOpenDynamic,
							adLockOptimistic,
							adCmdText);
	}
	catch(_com_error *e)
	{
		AfxMessageBox(e->ErrorMessage());
	}


	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CMy1110Dlg::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 CMy1110Dlg::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 CMy1110Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMy1110Dlg::OnInsert() 
{
	// TODO: Add your control notification handler code here
	UpdateData(true);
	if(m_name == "" || m_age == "")
	{
		AfxMessageBox("姓名和年龄信息不能为空!");
		return;
	}

	// 在ADO操作中建议语句中要常用try...catch()来捕获错误信息，
	// 因为它有时会经常出现一些想不到的错误。jingzhou xu
	try
	{
		// 写入各字段值
		m_pRecordset->AddNew();
		m_pRecordset->PutCollect("Name", _variant_t(m_name));
		m_pRecordset->PutCollect("Age", atol(m_age));
		m_pRecordset->Update();

		AfxMessageBox("插入成功!");


		// 更新显示其库内容
	//	int nCurSel = m_AccessList.GetCurSel();
	//	OnReadAccess();
	//	m_AccessList.SetCurSel(nCurSel);
		// 移动记录指针到新的位置
	//	OnSelchangeListaccess();
	}
	catch(_com_error *e)
	{
		AfxMessageBox(e->ErrorMessage());
	}
	
	m_name = _T("");
	m_age  = _T("");

	UpdateData(false);
}

void CMy1110Dlg::OnRefresh() 
{
	// TODO: Add your control notification handler code here

	m_list.DeleteAllItems();

	//-----------------------------------------------------
	int nID;
	CString  str[2]={_T(""),_T("")};
	_variant_t var;
	try
	{
		if(!m_pRecordset->BOF)
			m_pRecordset->MoveFirst();
		else
			return;
		while(!m_pRecordset->adoEOF)
		{
			nID = m_list.InsertItem(0xffff,"");
			//-----0--
			var = m_pRecordset->GetCollect("Name");
			if(var.vt != VT_NULL)
				str[0]= (LPCSTR)_bstr_t(var);
			else
				str[0]=_T("");
			m_list.SetItem(nID,0,1,str[0],NULL,0,0,0);
			//-----1--
			var = m_pRecordset->GetCollect("Age");
			if(var.vt != VT_NULL)
				str[1]= (LPCSTR)_bstr_t(var);
			else
				str[1]=_T("");
			m_list.SetItem(nID,1,1,str[1],NULL,0,0,0);
     /*       //-----2--
			var = m_pRecordset->GetCollect("BRYear");
			if(var.vt != VT_NULL)
				str[2]= (LPCSTR)_bstr_t(var);
			else
				str[2]=_T("");
			m_list.SetItem(nID,2,1,str[2],NULL,0,0,0);
            //-----3--
			var = m_pRecordset->GetCollect("BRSex");
			if(var.vt != VT_NULL)
				str[3]= (LPCSTR)_bstr_t(var);
			else
				str[3]=_T("");
			m_list.SetItem(nID,3,1,str[3],NULL,0,0,0);
			//-----4--
			var = m_pRecordset->GetCollect("BRKB");
			if(var.vt != VT_NULL)
				str[4]= (LPCSTR)_bstr_t(var);
			else
				str[4]=_T("");
			m_list.SetItem(nID,4,1,str[4],NULL,0,0,0);
			//-----5--
			var = m_pRecordset->GetCollect("YSName");
			if(var.vt != VT_NULL)
				str[5]= (LPCSTR)_bstr_t(var);
			else
				str[5]=_T("");
			m_list.SetItem(nID,5,1,str[5],NULL,0,0,0);
		
			//-----8--
			var = m_pRecordset->GetCollect("ZSName");
			if(var.vt != VT_NULL)
				str[6]= (LPCSTR)_bstr_t(var);
			else
				str[6]=_T("");
			m_list.SetItem(nID,6,1,str[6],NULL,0,0,0);*/
			m_pRecordset->MoveNext();
		}
	}
	
	catch(_com_error *e)
	{
		AfxMessageBox(e->ErrorMessage());
	}
	
}

void CMy1110Dlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	CString str;
	str = m_list.GetItemText(2,0);
	MessageBox(str);
}