使用VC++实现ADO添加资源到数据库

// 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; ///////////////////////////////////////////////////////////////////////////// // 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() ///////////////////////////////////////////////////////////////////////////// // CADOTest1Dlg dialog 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() ///////////////////////////////////////////////////////////////////////////// // CADOTest1Dlg message handlers 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 } // 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 CADOTest1Dlg::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 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(); } } // The system calls this to obtain the cursor to display while the user drags // the minimized window. 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->