如何调用excel打印

Question

使用Delphi 控件方法在Form中分别放入ExcelApplication, ExcelWorkbook和ExcelWorksheet。  打开已存在的工作簿:
ExcelApplication1.Workbooks.Open (c:\a.xls
EmptyParam,EmptyParam,EmptyParam,EmptyParam,
EmptyParam,EmptyParam,EmptyParam,EmptyParam,
EmptyParam,EmptyParam,EmptyParam,EmptyParam,0)
以上还正确
但加上这一句，编译通不过，提示无Activate属性
ExcelApplication1.WorkSheets[2].Activate; 

Answer 1

请参考下面的代码
      try
        ExcelApplicationSell.Connect;
        ExcelApplicationSell.WorkBooks.Open (FileName,
        EmptyParam,EmptyParam,EmptyParam,EmptyParam,
        EmptyParam,EmptyParam,EmptyParam,EmptyParam,
        EmptyParam,EmptyParam,EmptyParam,EmptyParam,0);
        ExcelApplicationSell.Visible[0]:=True;
        ExcelApplicationSell.Disconnect;
      except
        on E: exception do
        begin
          Application.MessageBox(Pchar('打开'+FileName+'失败！'),'错误',MB_ICONERROR + MB_OK);
          Exit;
        end;
      end;
    end;