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/// ADOTest1Dlg.h : header file #if !defined(AFX_ADOTEST1DLG_H__29B385C0_02C0_4588_A8B4_D0EFBB4F578D__INCLUDED_) #define AFX_ADOTEST1DLG_H__29B385C0_02C0_4588_A8B4_D0EFBB4F578D__INCLUDED_ #if _MSC_VER > 1000 #pragma once #endif // _MSC_VER > 1000 class CADOTest1Dlg : public CDialog { // Construction public: BOOL m_bAutoSave; void SaveData(); void LoadData(); _variant_t vUserID,vUsername,vOld,vBirthday; BOOL m_bSuccess; int m_nCurrentSel; _RecordsetPtr m_pRecordset; CADOTest1Dlg(CWnd* pParent = NULL); // standard constructor // Dialog Data //{{AFX_DATA(CADOTest1Dlg) enum { IDD = IDD_ADOTEST1_DIALOG }; CButton m_cDelItem; CButton m_cAddItem; CListCtrl m_userlist; UINT m_nUserID; UINT m_nOld; CString m_sUsername; COleDateTime m_tBirthday; //}}AFX_DATA // ClassWizard generated virtual function overrides //{{AFX_VIRTUAL(CADOTest1Dlg) protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support //}}AFX_VIRTUAL // Implementation protected: HICON m_hIcon; // Generated message map functions //{{AFX_MSG(CADOTest1Dlg) virtual BOOL OnInitDialog(); afx_msg void OnSysCommand(UINT nID, LPARAM lParam); afx_msg void OnPaint(); afx_msg HCURSOR OnQueryDragIcon(); virtual void OnOK(); afx_msg void OnAdditem(); afx_msg void OnDelitem(); afx_msg void OnItemchangedUserlist(NMHDR* pNMHDR, LRESULT* pResult); //}}AFX_MSG DECLARE_MESSAGE_MAP() }; #endif // ADOTest1Dlg.cpp : implementation file #include 'stdafx.h' #include 'ADOTest1.h' #include 'ADOTest1Dlg.h' #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif extern CADOTest1App theApp; 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() CADOTest1Dlg::CADOTest1Dlg(CWnd* pParent /*=NULL*/) : CDialog(CADOTest1Dlg::IDD, pParent) { //{{AFX_DATA_INIT(CADOTest1Dlg) m_nUserID = 0; m_nOld = 0; m_sUsername = _T(''); m_tBirthday = COleDateTime::GetCurrentTime(); //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); m_nCurrentSel = -1; m_bSuccess = FALSE; m_bAutoSave = TRUE; } void CADOTest1Dlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CADOTest1Dlg) DDX_Control(pDX, IDC_DELITEM, m_cDelItem); DDX_Control(pDX, IDC_ADDITEM, m_cAddItem); DDX_Control(pDX, IDC_USERLIST, m_userlist); DDX_Text(pDX, IDC_USERID, m_nUserID); DDX_Text(pDX, IDC_OLD, m_nOld); DDX_Text(pDX, IDC_USERNAME, m_sUsername); DDX_DateTimeCtrl(pDX, IDC_DATETIMEPICKER1, m_tBirthday); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CADOTest1Dlg, CDialog) //{{AFX_MSG_MAP(CADOTest1Dlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_ADDITEM, OnAdditem) ON_BN_CLICKED(IDC_DELITEM, OnDelitem) ON_NOTIFY(LVN_ITEMCHANGED, IDC_USERLIST, OnItemchangedUserlist) //}}AFX_MSG_MAP END_MESSAGE_MAP() BOOL CADOTest1Dlg::OnInitDialog() { CDialog::OnInitDialog(); m_cDelItem.EnableWindow(FALSE); ::SendMessage(m_userlist.m_hWnd, LVM_SETEXTENDEDLISTVIEWSTYLE, LVS_EX_FULLROWSELECT, LVS_EX_FULLROWSELECT); //为列表控件添加列// m_userlist.InsertColumn(0,'用户ID',LVCFMT_LEFT,60); m_userlist.InsertColumn(1,'用户名',LVCFMT_LEFT,100); m_userlist.InsertColumn(2,'年龄',LVCFMT_LEFT,60); m_userlist.InsertColumn(3,'生日',LVCFMT_LEFT,100); //读取数据库中的信息添加到列表控件/// int nItem; _variant_t vUsername,vBirthday,vID,vOld; try { m_pRecordset.CreateInstance('ADODB.Recordset'); m_pRecordset->Open('SELECT*FROM users', _variant_t((IDispatch*)theApp.m_pConnection,true), adOpenStatic,adLockOptimistic,adCmdText); m_bSuccess = TRUE; while(!m_pRecordset->adoEOF) { vID = m_pRecordset->GetCollect('ID'); vUsername = m_pRecordset->GetCollect('username'); vOld = m_pRecordset->GetCollect('old'); vBirthday = m_pRecordset->GetCollect('birthday'); nItem=m_userlist.InsertItem(0xffff,(_bstr_t)vID); m_userlist.SetItem(nItem,1,1,(_bstr_t)vUsername,NULL,0,0,0); m_userlist.SetItem(nItem,2,1,(_bstr_t)vOld,NULL,0,0,0); m_userlist.SetItem(nItem,3,1,(_bstr_t)vBirthday,NULL,0,0,0); m_pRecordset->MoveNext(); } } catch(_com_error e)///捕捉异常 { AfxMessageBox('读取数据库失败!');///显示错误信息 } 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); } } SetIcon(m_hIcon, TRUE); // Set big icon SetIcon(m_hIcon, FALSE); // Set small icon return TRUE; // return TRUE unless you set the focus to a control } void CADOTest1Dlg::OnSysCommand(UINT nID, LPARAM lParam) { if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID, lParam); } } void CADOTest1Dlg::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(); } } HCURSOR CADOTest1Dlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CADOTest1Dlg::OnOK() { if(m_bSuccess) { m_pRecordset->Update(); m_pRecordset->Close(); } CDialog::OnOK(); } void CADOTest1Dlg::OnAdditem() { if(UpdateData()) if(m_sUsername.GetLength()>0) { m_pRecordset->AddNew(); m_nCurrentSel = m_userlist.InsertItem(0xffff,''); SaveData();///保存数据 m_userlist.SetItemState(m_nCurrentSel,LVIS_SELECTED|LVIS_FOCUSED,LVIS_SELECTED|LVIS_FOCUSED); m_userlist.SetHotItem(m_nCurrentSel); m_userlist.SetFocus(); } else AfxMessageBox('请输入用户名'); } void CADOTest1Dlg::OnDelitem() { m_bAutoSave = FALSE; if(m_nCurrentSel >= 0) { m_userlist.DeleteItem(m_nCurrentSel); int count = m_userlist.GetItemCount(); if(count <= m_nCurrentSel) m_nCurrentSel = count-1; m_pRecordset->Delete(adAffectCurrent); m_pRecordset->MoveNext(); LoadData(); m_userlist.SetItemState(m_nCurrentSel,LVIS_SELECTED|LVIS_FOCUSED,LVIS_SELECTED|LVIS_FOCUSED); m_userlist.SetFocus(); } m_bAutoSave = TRUE; } //在选择列表框的时候调用/// void CADOTest1Dlg::OnItemchangedUserlist(NMHDR* pNMHDR, LRESULT* pResult) { NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR; if(pNMListView->uNewState&LVIS_SELECTED) { UpdateData(); SaveData();///保存旧数据 m_nCurrentSel = pNMListView->iItem; LoadData();///加载新数据 m_cDelItem.EnableWindow(); } *pResult = 0; } //将记录集中的数据加载到编辑框/ void CADOTest1Dlg::LoadData() { m_pRecordset->Move(m_nCurrentSel,_variant_t((long)adBookmarkFirst)); vUserID = m_pRecordset->GetCollect('ID'); vUsername = m_pRecordset->GetCollect('username'); vOld = m_pRecordset->GetCollect('old'); vBirthday = m_pRecordset->GetCollect('birthday'); m_nUserID = vUserID.lVal; m_sUsername = (LPCTSTR)(_bstr_t)vUsername; m_nOld = vOld.lVal; m_tBirthday = vBirthday; UpdateData(FALSE); } /将编辑框的数据保存到记录集与列表框 void CADOTest1Dlg::SaveData() { if(!m_pRecordset->adoEOF && m_nCurrentSel >= 0 && m_bAutoSave) { vUserID = (long)m_nUserID; vUsername = m_sUsername; vOld = (long)m_nOld; vBirthday = m_tBirthday; m_pRecordset->PutCollect('ID',vUserID); m_pRecordset->PutCollect('username',vUsername); m_pRecordset->PutCollect('old',vOld); m_pRecordset->PutCollect('birthday',vBirthday); m_userlist.SetItem(m_nCurrentSel,0,LVIF_TEXT,(_bstr_t)vUserID,NULL,0,0,0); m_userlist.SetItem(m_nCurrentSel,1,LVIF_TEXT,(_bstr_t)vUsername,NULL,0,0,0); m_userlist.SetItem(m_nCurrentSel,2,LVIF_TEXT,(_bstr_t)vOld,NULL,0,0,0); m_userlist.SetItem(m_nCurrentSel,3,LVIF_TEXT,(_bstr_t)vBirthday,NULL,0,0,0); } } BOOL CADOTest1App::InitInstance() { AfxEnableControlContainer(); AfxOleInit();///初始化COM库 HRESULT hr; 连接数据库// try { hr = m_pConnection.CreateInstance('ADODB.Connection');///创建Connection对象 if(SUCCEEDED(hr)) { hr = m_pConnection->Open('Provider=Microsoft.Jet.OLEDB.4.0; Data Source=test.mdb','','',adModeUnknown);///连接数据库 ///上面一句中连接字串中的Provider是针对ACCESS2000环境的， /对于ACCESS97,需要改为:Provider=Microsoft.Jet.OLEDB.3.51; } } } catch(_com_error e)///捕捉异常 { CString errormessage; errormessage.Format('连接数据库失败!\r\n错误信息:%s',e.ErrorMessage()); AfxMessageBox(errormessage);///显示错误信息 return FALSE; } #ifdef _AFXDLL Enable3dControls(); // Call this when using MFC in a shared DLL #else Enable3dControlsStatic(); // Call this when linking to MFC statically #endif CADOTest1Dlg dlg; m_pMainWnd = &dlg; int nResponse = dlg.DoModal(); if (nResponse == IDOK) {} else if (nResponse == IDCANCEL) {} return FALSE; } / int CADOTest1App::ExitInstance() { if(m_pConnection->State) m_pConnection->Close(); ///如果已经打开了连接则关闭它 return CWinApp::ExitInstance(); } |
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