HOWTO: ??????? MFC ??? ?????? ????? DAO ??? Excel ???????? ???????

???? ???????: 243394 - ??? ???????? ???? ????? ????? ??? ???????.
????? ???????? ????? ????? ??????? ?????? ?????? ???????
????? ???? | ?? ????

??????

??? Microsoft Excel ????? CopyFromRecordset ????? ???? ???? ??????? ?????? ????? "?????? ?????? ??? ???????? (DAO)" ??? ???? ???. ???? ??? ??????? ????? ??????? DAO MFC ?????? ?????? ????? ?? ????? ??? ??? ???? ??? Excel ???????? ??????? ????????.

??????? ????

???? ??????? ??????? ??? ???? ?????? ??? ?????? ????? ?? ???? ??????? ?? ???? "????????" ?? ????? Access ????? ???????? Northwind.mdb ??? ?? ????? ??? ??? ??????? ?????? ??????? ??? ??? ???? ??? Excel. ??? ????? ?? ?? ??? ?????? ?????? ????? ?????? Access ??????? ??????? ?????? ??, ????? ??????? ??? ????? ?????? ????? ????? ODBC ????? ???????. ?????? ??? ?????? ??? ??????? ????? ?????? ODBC ?? DAO ???? ????????? ??????? MFC DAO.

??? ?????

  1. ??? ???? ??????? EXE AppWizard MFC ???? ????? ??? ?????? ?????? AutoExcel.
  2. ?? ??????? ???? ???? ??? ClassWizard (?? ???? CTRL + W). ??? ????? ??????? "??????? ????????" ? ???? ??? ????? ??? ?? ???? "?? Type Library". ?????? ?????? ???? ????? ????? Excel (Excel8.olb ?? Excel 97 ?? Excel9.olb ??????? Excel 2000 ?? Excel.Exe ?? Excel 2002 ? Excel 2003).
    ??????: ??????? ??? ??????? ?? ??? ?????? ?? Excel ?????? ???????.
  3. ????? ???? ?????? ?? ????? ????? Excel ???? ???? ClassWizard.
  4. ????? ?? ?????? IDC_RUN ??? ???? ?????? IDD_AUTOEXCEL_DIALOG ??? ???????? ???????? ??????? ??? ????? ????. 
    
void CAutoExcelDlg::OnRun() 
{
    //For optional arguments
    COleVariant vOpt(DISP_E_PARAMNOTFOUND, VT_ERROR);

    CDaoDatabase db;
    CDaoRecordset rs;
    CString sConn;
    long lNumCols;

    //Get a recordset that represents all the records in the Products 
    //table of the sample Northwind database
    sConn = 
     "C:\\Program Files\\Microsoft Office\\Office\\Samples\\Northwind.mdb";
    db.Open(sConn, FALSE, FALSE);
    rs.m_pDatabase = &db;    
    rs.Open(AFX_DAO_USE_DEFAULT_TYPE, "Select * From Products", 0);
    lNumCols = rs.GetFieldCount();

    //Start a new workbook in Excel
    _Application oApp;
    oApp.CreateDispatch("Excel.Application");
    if (!oApp)
    {
        AfxMessageBox("Cannot start Excel");
        return;
    }

    Workbooks oBooks = oApp.GetWorkbooks();
    _Workbook oBook = oBooks.Add(vOpt);
    Worksheets oSheets = oBook.GetWorksheets();
    _Worksheet oSheet = oSheets.GetItem(COleVariant((short)1));
    Range oRange;

    //Transfer the data in the recordset to the worksheet
    COleDispatchDriver rs2;
    rs2.AttachDispatch((LPDISPATCH) rs.m_pDAORecordset);
    oRange = oSheet.GetRange(COleVariant("A2"), vOpt);
    oRange.CopyFromRecordset((LPUNKNOWN) rs2.m_lpDispatch, vOpt, vOpt);
    rs2.DetachDispatch();
    rs2.ReleaseDispatch();

    //Add the field names to row 1
    CDaoFieldInfo FieldInfo;
    for(long i=0; i<=lNumCols-1;i++)
    {
        oRange = oSheet.GetRange(COleVariant("A1"), vOpt);
        oRange = oRange.GetOffset(vOpt, COleVariant(i));
        rs.GetFieldInfo(i, FieldInfo, AFX_DAO_PRIMARY_INFO);

        oRange.SetValue(COleVariant(FieldInfo.m_strName));
        // For Excel 2003, SetValue takes two parameters.
       // oRange.SetValue(COleVariant(FieldInfo.m_strName),COleVariant());
    }

    //Format the worksheet
    oRange = oSheet.GetRange(COleVariant("A1"), vOpt);
    oRange = oRange.GetResize(COleVariant((short)1), 
                              COleVariant(lNumCols));
    Font oFont = oRange.GetFont();
    oFont.SetBold(COleVariant((short)TRUE));
    oRange = oRange.GetEntireColumn();
    oRange.AutoFit();

    //Make Excel visible and give the user control
    oApp.SetVisible(TRUE);
    oApp.SetUserControl(TRUE);
}
  5. ????? ????? ??? ClassWizard ?? ??????? ?? ????? ??? Excel ??? CAutoExcelDlg.cpp. ??? ???? ??????: 
        #include "excel8.h" /// For Excel 2003, use #include "excel.h"
    ??????: ????? ??? ??????? ??? ??????? "Stdafx.h" ????? ????? ?????? ??????? ???????.
  6. ????? ????? ??? DAO MFC ?? StdAfx.h: 
        #include <afxdao.h>
  7. ????? CAutoExcelApp::InitInstance ?? AutoExcel.cpp ???? ??? ????? ????? COM ??? ??? ????? ??????? ????? ??: 
        if(!AfxOleInit())
    {
        AfxMessageBox("Cannot initialize COM services.");
        return FALSE;
    }
    ??????: ????? ??? ???????? ???????? ??? ??????? DoModal().
  8. ?????? ??????? ???????.
  9. ???? ??? ???? ?? ???? ??????. ??? ????? ????? ?? ?????? ??????? ?????? "??????" ?? Northwind ??? ???? ????? ?????? ?? ?????? ?? Excel.

???????

???? ???????: 243394 - ????? ??? ??????: 06/????/1428 - ??????: 4.5
????? ???
  • Microsoft Office Excel 2003
  • Microsoft Excel 2002 Standard Edition
  • Microsoft Excel 2000 Standard Edition
  • Microsoft Excel 97 Standard Edition
  • Microsoft Visual C++ 6.0 Professional Edition
  • Microsoft Visual C++ 5.0 Professional Edition
????? ??????: 
kbmt kbautomation kbhowto KB243394 KbMtar
????? ????
???: ??? ????? ??? ?????? ???????? ?????? ????? ???? ????? ?????????? ????? ?? ????????? ?????? ????. ???? ???? ?????????? ???? ?? ???????? ???????? ?????? ????????? ????? ????????? ???????? ????? ???????? ?????? ?? ?????? ??? ?? ???????? ???????? ?? ????? ??????? ?????? ??? ??????? ?????? ??. ?????? ?? ???? ??? ??????? ???????? ????? ?? ???? ????? ?????? ??? ????? ??? ????? ??????? ?? ????? ?? ?????? ??? ??? ??????? ??????? ?? ????? ????? ????? ????? ?????. ?? ????? ???? ?????????? ??????? ??? ????? ?? ??????? ?? ????? ?????? ?? ??? ????? ?? ????? ??????? ?? ???????? ?? ??? ???????. ???? ???? ?????????? ???????? ??? ????? ?????? ??????? ??????
???? ??? ????? ??????? ?????? ??????????243394
(http://support.microsoft.com/kb/243394/en-us/ )
???? ??? ?????? | ????? ???????

????? ???????

 
???? ??? ?????????? ??? ??????