魔法天女朵法拉动画片:引用 Delphi操作EXCEL 2

Xl.Cells.Select;//Select All Cells
Xl.Selection.Locked = True;// Lock Selected Cells

//Xl:=CreateOleObject('Excel.Application');

procedure TForm1.BitBtn4Click(Sender: TObject);
var
  ExcelApp, Sheet: Variant;
begin
  if OpenDialog1.Execute then
  begin
    ExcelApp := CreateOleObject( 'Excel.Application' );
    ExcelApp.Workbooks.Open(OpenDialog1.FileName);
    Sheet    := ExcelApp.ActiveSheet;
    Caption  := 'Row Count: ' + IntToStr(Sheet.UsedRange.Rows.Count);
    ExcelApp.Quit;
    Sheet    := Unassigned;
    ExcelApp := Unassigned;
  end;
end;

procedure CopyDbDataToExcel(Target: TDbgrid);
var
  iCount, jCount: Integer;
  XLApp: Variant;
  Sheet: Variant;
begin
  Screen.Cursor := crHourGlass;
  if not VarIsEmpty(XLApp) then
  begin
    XLApp.DisplayAlerts := False;
    XLApp.Quit;
    VarClear(XLApp);
  end;
  //通过ole创建Excel对象
  try
    XLApp := CreateOleObject('Excel.Application');
  except
    Screen.Cursor := crDefault;
    Exit;
  end;
  XLApp.WorkBooks.Add[XLWBatWorksheet];
  XLApp.WorkBooks[1].WorkSheets[1].Name := '测试工作薄';
  Sheet := XLApp.Workbooks[1].WorkSheets['测试工作薄'];
  if not Target.DataSource.DataSet.Active then
  begin
     Screen.Cursor := crDefault;
     Exit;
  end;
  Target.DataSource.DataSet.first;

  for iCount := 0 to Target.Columns.Count - 1 do
  begin
     Sheet.cells[1, iCount + 1] := Target.Columns.Items[iCount].Title.Caption;
  end;
  jCount := 1;
  while not Target.DataSource.DataSet.Eof do
  begin
     for iCount := 0 to Target.Columns.Count - 1 do
     begin
       Sheet.cells[jCount + 1, iCount + 1] := Target.Columns.Items[iCount].Field.AsString;
     end;
     Inc(jCount);
     Target.DataSource.DataSet.Next;
  end;
  XlApp.Visible := True;
  Screen.Cursor := crDefault;
end;

看看我的函数
function ExportToExcel(Header: String;
  vDataSet: TDataSet): Boolean;
var
  I,VL_I,j: integer;
  S,SysPath: string;
  MsExcel:Variant;
begin
  Result:=true;
  if Application.MessageBox('您确信将数据导入到Excel吗?','提示！',MB_OKCANCEL + MB_DEFBUTTON1) = IDOK then
  begin
      SysPath:=ExtractFilePath(application.exename);
      with TStringList.Create do
      try
        vDataSet.First ;
        S:=S+Header;
    //    system.Delete(s,1,1);
        add(s);
        s:=';
        For I:=0 to vDataSet.fieldcount-1 do
          begin
            If vDataSet.fields[I].visible=true then
               S:=S+#9+vDataSet.fields[I].displaylabel;
          end;
        system.Delete(s,1,1);
        add(s);
        while not vDataSet.Eof do
        begin
          S := ';
          for I := 0 to vDataSet.FieldCount -1 do
            begin
              If vDataSet.fields[I].visible=true then
                 S := S + #9 + vDataSet.Fields[I].AsString;
            end;
          System.Delete(S, 1, 1);
          Add(S);
          vDataSet.Next;
        end;
        Try
          SaveToFile(SysPath+'\Tem.xls');
        Except
          ShowMessage('写文件时发生保护性错误，Excel 如在运行，请先关闭！');
          Result:=false;
          exit;
        end;
      finally
        Free;
      end;
      Try
        MSExcel:=CreateOleObject('Excel.Application');
      Except
        ShowMessage('Excel 没有安装，请先安装！');
        Result:=false;
        exit;
      end;
      Try
        MSExcel.workbooks.open(SysPath+'\Tem.xls');
      Except
        ShowMessage('打开临时文件时出错，请检查'+SysPath+'\Tem.xls');
        Result:=false;
        exit;
      end;
        MSExcel.visible:=True;
        for VL_I :=1 to 4 do
        MSExcel.Selection.Borders[VL_I].LineStyle := 0;
        MSExcel.cells.select;
        MSExcel.Selection.HorizontalAlignment :=3;
        MSExcel.Selection.Borders[1].LineStyle := 0;

      MSExcel.Range['A1'].Select;
      MSExcel.Selection.Font.Size :=24;

      J:=0 ;
      for i:=0 to vdataset.fieldcount-1 do
          if vDataSet.fields[I].visible  then
             J:=J+1;

      VL_I :=J;
      MSExcel.Range['A1:'+F_ColumnName(VL_I)+'1'].Select;
      MSExcel.Range['A1:'+F_ColumnName(VL_I)+'1'].Merge;
  end
  else
    Result:=false;
end;

转别人的组件
unit OleExcel;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  comobj, DBTables, Grids;
type
  TOLEExcel = class(TComponent)
  private
    FExcelCreated: Boolean;
    FVisible: Boolean;
    FExcel: Variant;
    FWorkBook: Variant;
    FWorkSheet: Variant;
    FCellFont: TFont;
    FTitleFont: TFont;
    FFontChanged: Boolean;
    FIgnoreFont: Boolean;
    FFileName: TFileName;
    procedure SetExcelCellFont(var Cell: Variant);
    procedure SetExcelTitleFont(var Cell: Variant);
    procedure GetTableColumnName(const Table: TTable; var Cell: Variant);
    procedure GetQueryColumnName(const Query: TQuery; var Cell: Variant);
    procedure GetFixedCols(const StringGrid: TStringGrid; var Cell: Variant);
    procedure GetFixedRows(const StringGrid: TStringGrid; var Cell: Variant);
    procedure GetStringGridBody(const StringGrid: TStringGrid; var Cell: Variant);
  protected
    procedure SetCellFont(NewFont: TFont);
    procedure SetTitleFont(NewFont: TFont);
    procedure SetVisible(DoShow: Boolean);
    function GetCell(ACol, ARow: Integer): string;
    procedure SetCell(ACol, ARow: Integer; const Value: string);

    function GetDateCell(ACol, ARow: Integer): TDateTime;
    procedure SetDateCell(ACol, ARow: Integer; const Value: TDateTime);
  public
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    procedure CreateExcelInstance;
    property Cell[ACol, ARow: Integer]: string read GetCell write SetCell;
    property DateCell[ACol, ARow: Integer]: TDateTime read GetDateCell write SetDateCell;
    function IsCreated: Boolean;
    procedure TableToExcel(const Table: TTable);
    procedure QueryToExcel(const Query: TQuery);
    procedure StringGridToExcel(const StringGrid: TStringGrid);
    procedure SaveToExcel(const FileName: string);
  published
    property TitleFont: TFont read FTitleFont write SetTitleFont;
    property CellFont: TFont read FCellFont write SetCellFont;
    property Visible: Boolean read FVisible write SetVisible;
    property IgnoreFont: Boolean read FIgnoreFont write FIgnoreFont;
    property FileName: TFileName read FFileName write FFileName;
  end;

procedure Register;

implementation

constructor TOLEExcel.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);
  FIgnoreFont := True;
  FCellFont := TFont.Create;
  FTitleFont := TFont.Create;
  FExcelCreated := False;
  FVisible := False;
  FFontChanged := False;
end;

destructor TOLEExcel.Destroy;
begin
  FCellFont.Free;
  FTitleFont.Free;
  inherited Destroy;
end;

procedure TOLEExcel.SetExcelCellFont(var Cell: Variant);
begin
  if FIgnoreFont then exit;
  with FCellFont do
    begin
      Cell.Font.Name := Name;
      Cell.Font.Size := Size;
      Cell.Font.Color := Color;
      Cell.Font.Bold := fsBold in Style;
      Cell.Font.Italic := fsItalic in Style;
      Cell.Font.UnderLine := fsUnderline in Style;
      Cell.Font.Strikethrough := fsStrikeout in Style;
    end;
end;

procedure TOLEExcel.SetExcelTitleFont(var Cell: Variant);
begin
  if FIgnoreFont then exit;
  with FTitleFont do
    begin
      Cell.Font.Name := Name;
      Cell.Font.Size := Size;
      Cell.Font.Color := Color;
      Cell.Font.Bold := fsBold in Style;
      Cell.Font.Italic := fsItalic in Style;
      Cell.Font.UnderLine := fsUnderline in Style;
      Cell.Font.Strikethrough := fsStrikeout in Style;
    end;
end;

procedure TOLEExcel.SetVisible(DoShow: Boolean);
begin
  if not FExcelCreated then exit;
  if DoShow then
    FExcel.Visible := True
  else
    FExcel.Visible := False;
end;

function TOLEExcel.GetCell(ACol, ARow: Integer): string;
begin
  if not FExcelCreated then exit;
  result := FWorkSheet.Cells[ARow, ACol];
end;

procedure TOLEExcel.SetCell(ACol, ARow: Integer; const Value: string);
var
  Cell: Variant;
begin
  if not FExcelCreated then exit;
  Cell := FWorkSheet.Cells[ARow, ACol];
  SetExcelCellFont(Cell);
  Cell.Value := Value;
end;

function TOLEExcel.GetDateCell(ACol, ARow: Integer): TDateTime;
begin
  if not FExcelCreated then
    begin
      result := 0;
      exit;
    end;
  result := StrToDateTime(FWorkSheet.Cells[ARow, ACol]);
end;

procedure TOLEExcel.SetDateCell(ACol, ARow: Integer; const Value: TDateTime);
var
  Cell: Variant;
begin
  if not FExcelCreated then exit;
  Cell := FWorkSheet.Cells[ARow, ACol];
  SetExcelCellFont(Cell);
  Cell.Value := '' + DateTimeToStr(Value);
end;

procedure TOLEExcel.CreateExcelInstance;
begin
  try
    FExcel := CreateOLEObject('Excel.Application');
    FWorkBook := FExcel.WorkBooks.Add;
    FWorkSheet := FWorkBook.WorkSheets.Add;
    FExcelCreated := True;
  except
    FExcelCreated := False;
  end;
end;

function TOLEExcel.IsCreated: Boolean;
begin
  result := FExcelCreated;
end;

procedure TOLEExcel.SetTitleFont(NewFont: TFont);
begin
  if NewFont <> FTitleFont then
    FTitleFont.Assign(NewFont);
end;

procedure TOLEExcel.SetCellFont(NewFont: TFont);
begin
  if NewFont <> FCellFont then
    FCellFont.Assign(NewFont);
end;

procedure TOLEExcel.GetTableColumnName(const Table: TTable; var Cell: Variant);
var
  Col: integer;
begin
  for Col := 0 to Table.FieldCount - 1 do
    begin
      Cell := FWorkSheet.Cells[1, Col + 1];
      SetExcelTitleFont(Cell);
      Cell.Value := Table.Fields[Col].FieldName;
    end;
end;

procedure TOLEExcel.TableToExcel(const Table: TTable);
var
  Col, Row: LongInt;
  Cell: Variant;
begin
  if not FExcelCreated then exit;
  if Table.Active = False then exit;

  GetTableColumnName(Table, Cell);
  Row := 2;
  with Table do
    begin
      first;
      while not EOF do
        begin
          for Col := 0 to FieldCount - 1 do
            begin
              Cell := FWorkSheet.Cells[Row, Col + 1];
              SetExcelCellFont(Cell);
              Cell.Value := Fields[Col].AsString;
            end;
          next;
          Inc(Row);
        end;
    end;
end;

procedure TOLEExcel.GetQueryColumnName(const Query: TQuery; var Cell: Variant);
var
  Col: integer;
begin
  for Col := 0 to Query.FieldCount - 1 do
    begin
      Cell := FWorkSheet.Cells[1, Col + 1];
      SetExcelTitleFont(Cell);
      Cell.Value := Query.Fields[Col].FieldName;
    end;
end;

procedure TOLEExcel.QueryToExcel(const Query: TQuery);
var
  Col, Row: LongInt;
  Cell: Variant;
begin
  if not FExcelCreated then exit;
  if Query.Active = False then exit;

  GetQueryColumnName(Query, Cell);
  Row := 2;
  with Query do
    begin
      first;
      while not EOF do
        begin
          for Col := 0 to FieldCount - 1 do
            begin
              Cell := FWorkSheet.Cells[Row, Col + 1];
              SetExcelCellFont(Cell);
              Cell.Value := Fields[Col].AsString;
            end;
          next;
          Inc(Row);
        end;
    end;
end;

procedure TOLEExcel.GetFixedCols(const StringGrid: TStringGrid; var Cell: Variant);
var
  Col, Row: LongInt;
begin
  for Col := 0 to StringGrid.FixedCols - 1 do
    for Row := 0 to StringGrid.RowCount - 1 do
      begin
        Cell := FWorkSheet.Cells[Row + 1, Col + 1];
        SetExcelTitleFont(Cell);
        Cell.Value := StringGrid.Cells[Col, Row];
      end;
end;

procedure TOLEExcel.GetFixedRows(const StringGrid: TStringGrid; var Cell: Variant);
var
  Col, Row: LongInt;
begin
  for Row := 0 to StringGrid.FixedRows - 1 do
    for Col := 0 to StringGrid.ColCount - 1 do
      begin
        Cell := FWorkSheet.Cells[Row + 1, Col + 1];
        SetExcelTitleFont(Cell);
        Cell.Value := StringGrid.Cells[Col, Row];
      end;
end;

procedure TOLEExcel.GetStringGridBody(const StringGrid: TStringGrid; var Cell: Variant);
var
  Col, Row, x, y: LongInt;
begin
  Col := StringGrid.FixedCols;
  Row := StringGrid.FixedRows;
  for x := Row to StringGrid.RowCount - 1 do
    for y := Col to StringGrid.ColCount - 1 do
      begin
        Cell := FWorkSheet.Cells[x + 1, y + 1];
        SetExcelCellFont(Cell);
        Cell.Value := StringGrid.Cells[y, x];
      end;
end;

procedure TOLEExcel.StringGridToExcel(const StringGrid: TStringGrid);
var
  Cell: Variant;
begin
  if not FExcelCreated then exit;
  GetFixedCols(StringGrid, Cell);
  GetFixedRows(StringGrid, Cell);
  GetStringGridBody(StringGrid, Cell);
end;

procedure TOLEExcel.SaveToExcel(const FileName: string);
begin
  if not FExcelCreated then exit;
  FWorkSheet.SaveAs(FileName);
end;

procedure Register;
begin
  RegisterComponents('Tanglu', [TOLEExcel]);
end;

end.