Сохранение и загрузка, импорт и экспорт

Code:

{ Code by Reinhard Schatzl }

uses

  ComObj;

// Hilfsfunktion fur StringGridToExcelSheet

// Helper function for StringGridToExcelSheet

function RefToCell(RowID, ColID: Integer): string;

var

  ACount, APos: Integer;

begin

  ACount := ColID div 26;

  APos := ColID mod 26;

  if APos = 0 then

  begin

    ACount := ACount - 1;

    APos := 26;

  end;

  if ACount = 0 then

    Result := Chr(Ord('A') + ColID - 1) + IntToStr(RowID);

  if ACount = 1 then

    Result := 'A' + Chr(Ord('A') + APos - 1) + IntToStr(RowID);

  if ACount > 1 then

    Result := Chr(Ord('A') + ACount - 1) + Chr(Ord('A') + APos - 1) + IntToStr(RowID);

end;

// StringGrid Inhalt in Excel exportieren

// Export StringGrid contents to Excel

function StringGridToExcelSheet(Grid: TStringGrid; SheetName, FileName: string;

  ShowExcel: Boolean): Boolean;

const

  xlWBATWorksheet = -4167;

var

  SheetCount, SheetColCount, SheetRowCount, BookCount: Integer;

  XLApp, Sheet, Data: OLEVariant;

  I, J, N, M: Integer;

  SaveFileName: string;

begin

  //notwendige Sheetanzahl feststellen

SheetCount := (Grid.ColCount div 256) + 1;

  if Grid.ColCount mod 256 = 0 then

    SheetCount := SheetCount - 1;

  //notwendige Bookanzahl feststellen

BookCount := (Grid.RowCount div 65536) + 1;

  if Grid.RowCount mod 65536 = 0 then

    BookCount := BookCount - 1;

  //Create Excel-OLE Object

Result := False;

  XLApp  := CreateOleObject('Excel.Application');

  try

    //Excelsheet anzeigen

   if ShowExcel = False then

      XLApp.Visible := False

    else

      XLApp.Visible := True;

    //Workbook hinzufugen

   for M := 1 to BookCount do

    begin

      XLApp.Workbooks.Add(xlWBATWorksheet);

      //Sheets anlegen

     for N := 1 to SheetCount - 1 do

      begin

        XLApp.Worksheets.Add;

      end;

    end;

    //Sheet ColAnzahl feststellen

   if Grid.ColCount <= 256 then

      SheetColCount := Grid.ColCount

    else

      SheetColCount := 256;

    //Sheet RowAnzahl feststellen

   if Grid.RowCount <= 65536 then

      SheetRowCount := Grid.RowCount

    else

      SheetRowCount := 65536;

    //Sheets befullen

   for M := 1 to BookCount do

    begin

      for N := 1 to SheetCount do

      begin

        //Daten aus Grid holen

       Data := VarArrayCreate([1, Grid.RowCount, 1, SheetColCount], varVariant);

        for I := 0 to SheetColCount - 1 do

          for J := 0 to SheetRowCount - 1 do

            if ((I + 256 * (N - 1)) <= Grid.ColCount) and

              ((J + 65536 * (M - 1)) <= Grid.RowCount) then

              Data[J + 1, I + 1] := Grid.Cells[I + 256 * (N - 1), J + 65536 * (M - 1)];

        //-------------------------

       XLApp.Worksheets[N].Select;

        XLApp.Workbooks[M].Worksheets[N].Name := SheetName + IntToStr(N);

        //Zellen als String Formatieren

       XLApp.Workbooks[M].Worksheets[N].Range[RefToCell(1, 1),

          RefToCell(SheetRowCount, SheetColCount)].Select;

        XLApp.Selection.NumberFormat := '@';

        XLApp.Workbooks[M].Worksheets[N].Range['A1'].Select;

        //Daten dem Excelsheet ubergeben

       Sheet := XLApp.Workbooks[M].WorkSheets[N];

        Sheet.Range[RefToCell(1, 1), RefToCell(SheetRowCount, SheetColCount)].Value :=

          Data;

      end;

    end;

    //Save Excel Worksheet

   try

      for M := 1 to BookCount do

      begin

        SaveFileName := Copy(FileName, 1,Pos('.', FileName) - 1) + IntToStr(M) +

          Copy(FileName, Pos('.', FileName),

          Length(FileName) - Pos('.', FileName) + 1);

        XLApp.Workbooks[M].SaveAs(SaveFileName);

      end;

      Result := True;

    except

      // Error ?

   end;

  finally

    //Excel Beenden

   if (not VarIsEmpty(XLApp)) and (ShowExcel = False) then

    begin

      XLApp.DisplayAlerts := False;

      XLApp.Quit;

      XLAPP := Unassigned;

      Sheet := Unassigned;

    end;

  end;

end;

//Example

procedure TForm1.Button1Click(Sender: TObject);

begin

  //StringGrid inhalt in Excel exportieren

//Grid : stringGrid, SheetName : stringgrid Print, Pfad : c:\Test\ExcelFile.xls, Excelsheet anzeigen

StringGridToExcelSheet(StringGrid, 'Stringgrid Print', 'c:\Test\ExcelFile.xls', True);

end;