Delphi dbgrid 导出 excel 方法

紫薰衣草

delphi dbgrid 导出Excel表  

/////////  利用剪贴板，速度很快！适合装有Excel的机器/////////////////////  
 
  USES  Clipbrd,ComObj;  
   
  procedure  TForm1.Button1Click(Sender:  TObject);  
  var  
     str:string;  
      i:Integer;  
     excelapp,sheet:Variant;  
  begin  
  //   lbl2.Caption:=DateTimeToStr(Now);  
      str:='';  
     dbgrd1.DataSource.DataSet.DisableControls;  
      for  i:=0  to  dbgrd1.DataSource.DataSet.FieldCount-1  do  
      str:=str+dbgrd1.DataSource.DataSet.fields.DisplayLabel+char(9);  
     str:=str+#13;  
     dbgrd1.DataSource.DataSet.First;  
      while  not(dbgrd1.DataSource.DataSet.eof)  do  begin  
         for  i:=0    to  dbgrd1.DataSource.DataSet.FieldCount-1  do  
          str:=str+dbgrd1.DataSource.DataSet.Fields.AsString+char(9);  
         str:=str+#13;  
        dbgrd1.DataSource.DataSet.next;  
   
        lbl1.Caption:=IntToStr(dbgrd1.DataSource.DataSet.RecNo);  
         Application.ProcessMessages;  
      
       end;//end  while  
   
       dbgrd1.DataSource.DataSet.EnableControls;  
   
       clipboard.Clear;  
       Clipboard.Open;  
       Clipboard.AsText:=str;  
       Clipboard.Close;  
       excelapp:=createoleobject('excel.application');  
       excelapp.workbooks.add(1);  //  excelapp.workbooks.add(-4167);  
       sheet:=excelapp.workbooks[1].worksheets[1];  
       sheet.name:='sheet1';  
       sheet.paste;  
       Clipboard.Clear;  
  //     sheet.columns.font.Name:='宋体';  
  //     sheet.columns.font.size:=9;  
  //     sheet.Columns.AutoFit;  
       excelapp.visible:=true;  
  //     lbl3.Caption:=DateTimeToStr(Now);  
   
  end;  
   
 /////////////////////////////////////////////



////////////利用TStringList，速度很快！适合没有装Excel的机器////////////////////////  
   
  procedure  TForm1.Button1Click(Sender:  TObject);  
  var  
     s:TStringList;  
     str:string;  
      i:Integer;  
  begin  
  //   lbl1.Caption:=DateTimeToStr(Now);  
      str:='';  
     dbgrd1.DataSource.DataSet.DisableControls;  
      for  i:=0  to  dbgrd1.DataSource.DataSet.FieldCount-1  do  
        str:=str+dbgrd1.DataSource.DataSet.fields.DisplayLabel+char(9);  
     str:=str+#13;  
     dbgrd1.DataSource.DataSet.First;  
      while  not(dbgrd1.DataSource.DataSet.eof)  do  begin  
         for  i:=0    to  dbgrd1.DataSource.DataSet.FieldCount-1  do  
           str:=str+dbgrd1.DataSource.DataSet.Fields.AsString+char(9);  
   
            str:=str+#13;  
            dbgrd1.DataSource.DataSet.next;  
   
  //      lbl3.Caption:=IntToStr(dbgrd1.DataSource.DataSet.RecNo);  
  //       Application.ProcessMessages;  
   
       end;//end  while  
   
       dbgrd1.DataSource.DataSet.EnableControls;  
       s:=TStringList.Create;  
       s.Add(str);  
       s.SaveToFile('c:\temp.xls');//保存到c:\temp.xls  
       s.Free;  
  //     lbl2.Caption:=DateTimeToStr(Now);  
   
  end;  
 ////////////////////////////////////////////////
***********************************************************
(Delphi)Excel的快速导入
***********************************************************

(Delphi)Excel的快速导入
//怎样可以提高EXCEL的导出速度？

uses ADODB,excel97,adoint;

function TForm1.ExportToExcel: Boolean;
var
  xlApp,xlBook,xlSheet,xlQuery: Variant;
  adoConnection,adoRecordset: Variant;
begin
  adoConnection := CreateOleObject('ADODB.Connection');
  adoRecordset := CreateOleObject('ADODB.Recordset');
 adoConnection.Open('Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:\Tree.mdb;Persist Security Info=False');
  adoRecordset.CursorLocation := adUseClient;
  adoRecordset.Open('SELECT * FROM tree',adoConnection,1,3);

  try
    xlApp := CreateOleObject('Excel.Application');
    xlBook := xlApp.Workbooks.Add;
    xlSheet := xlBook.Worksheets['sheet1'];
   
    //设置这一列为 文本列 ，让 "00123" 正确显示，而不是自动转换为"123"
   xlSheet.Columns['C:C'].NumberFormatLocal := '@';

    xlApp.Visible := True;

    //把查询结果导入EXCEL数据
    xlQuery := xlSheet.QueryTables.Add(adoRecordset,xlSheet.Range['A1']);  //关键是这一句
    xlQuery.FieldNames := True;
    xlQuery.RowNumbers := False;
    xlQuery.FillAdjacentFormulas := False;
    xlQuery.PreserveFormatting := True;
    xlQuery.RefreshOnFileOpen := False;
    xlQuery.BackgroundQuery := True;
    //xlQuery.RefreshStyle := xlInsertDeleteCells;
    xlQuery.SavePassword := True;
    xlQuery.SaveData := True;
    xlQuery.AdjustColumnWidth := True;
    xlQuery.RefreshPeriod := 0;
    xlQuery.PreserveColumnInfo := True;
    xlQuery.FieldNames := True;
    xlQuery.Refresh;

   xlBook.SaveAs('d:\fromD.xls',xlNormal,'','',False,False);

  finally
    if not VarIsEmpty(XLApp) then begin
     XLApp.displayAlerts:=false;
     XLApp.ScreenUpdating:=true;
     XLApp.quit;
    end;
  end;
end;






///////////////////////////////////////////////////
procedure saveToExcel();
var
   Eclapp,workbook:variant;
   i,n:integer;
begin
   if not adoquery1.Active then exit;
   if adoquery1.RecordCount<=0 then exit;

   if application.MessageBox('确认导出excel表吗？','提示',mb_okcancel+mb_iconinformation)=idcancel then exit;
   Eclapp := createoleobject('Excel.Application');
   Eclapp.workbooks.add;
   for i:=0 to dbgrid2.FieldCount-1 do
   begin
    Eclapp.cells[1,i+1]:=dbgrid2.Columns.Title.Caption;
   end;
   Eclapp.cells[1,5]:='签字';

   adoquery1.First;
   n:=2;
   while not adoquery1.Eof do
   begin
    eclapp.cells[n,1] := adoquery1.Fields[0].AsString;
    eclapp.cells[n,2] := adoquery1.Fields[1].AsString;
    eclapp.cells[n,3] := adoquery1.Fields[2].AsString;
    eclapp.cells[n,4] := adoquery1.Fields[4].AsString;
    eclapp.cells[n,6] :='        ';
    inc(n);
    adoquery1.Next;
   end;

   eclapp.cells[n,1] := '满足条件记录的总数为：'+inttostr(adoquery1.RecordCount)+'条';
  application.MessageBox('数据导出完成!','提示',mb_ok+mb_iconinformation);
   eclapp.visible := true;

end;

 

 
方法二
procedure CopyDbDataToExcel(Args: array of const);  
var  
  iCount, jCount: Integer;  
  XLApp: Variant;  
  Sheet,range: Variant;  
  I: Integer;  
begin  
  Screen.Cursor := crHourGlass;  
  if not VarIsEmpty(XLApp) then  
  begin  
    XLApp.DisplayAlerts := False;  
    XLApp.Quit;  
    VarClear(XLApp);  
  end;

  try  
   XLApp:=CreateOleObject(Excel.Application);  
  except  
    Screen.Cursor := crDefault;  
    Exit;  
  end;

  XLApp.WorkBooks.Add;  
  XLApp.SheetsInNewWorkbook := High(Args) + 1;

  for I := Low(Args) to High(Args) do  
  begin  
   XLApp.WorkBooks[1].WorkSheets[I+1].Name := TDBGrid(Args[I].VObject).Name;  
    Sheet := XLApp.Workbooks[1].WorkSheets[TDBGrid(Args[I].VObject).Name];

    if not TDBGrid(Args[I].VObject).DataSource.DataSet.Active then  
    begin  
     Screen.Cursor := crDefault;  
      Exit;  
    end;  
   TDBGrid(Args[I].VObject).DataSource.DataSet.first;  
    for iCount := 0 to TDBGrid(Args[I].VObject).Columns.Count - 1 do  
   range:=sheet.range[sheet.cells[1,1],sheet.cells[1,iCount + 1]];  
    range.select;  
    range.merge;  
   sheet.cells[1,1]:=[+fqueryhuman.dbedit2.text+]+个人报销记录（普通报销、特殊报销）查询;  
    jCount :=2;  
    for iCount := 0 to TDBGrid(Args[I].VObject).Columns.Count - 1 do  
    Sheet.Cells[2, iCount + 1]:=TDBGrid(Args[I].VObject).Columns.Items[iCount].Title.Caption;  
  while not TDBGrid(Args[I].VObject).DataSource.DataSet.Eof do  
    begin  
      for iCount := 0 to TDBGrid(Args[I].VObject).Columns.Count - 1 do  
       Sheet.Cells[jCount + 1, iCount + 1] :=  
     TDBGrid(Args[I].VObject).Columns.Items[iCount].Field.AsString;

     Inc(jCount);  
     TDBGrid(Args[I].VObject).DataSource.DataSet.Next;  
    end;  
    XlApp.Visible := True;  
  end;  
  Screen.Cursor := crDefault;  
end;


方法三


delphi导入/导出excel
2008年03月02日 星期日 16:39
从Excel文件中,导入数据到SQL数据库中,很简单,直接用下面的语句:

--如果接受数据导入的表已经存在
insert into 表 select * from
OPENROWSET('MICROSOFT.JET.OLEDB.4.0'
,'Excel 5.0;HDR=YES;DATABASE=c:\test.xls',sheet1$)
--如果导入数据并生成表
select * into 表 from
OPENROWSET('MICROSOFT.JET.OLEDB.4.0'
,'Excel 5.0;HDR=YES;DATABASE=c:\test.xls',sheet1$)



--如果从SQL数据库中,导出数据到Excel,如果Excel文件已经存在,而且已经按照要接收的数据创建好表头,就可以简单的用:
insert into OPENROWSET('MICROSOFT.JET.OLEDB.4.0'
,'Excel 5.0;HDR=YES;DATABASE=c:\test.xls',sheet1$)
select * from 表


--如果Excel文件不存在,也可以用BCP来导成类Excel的文件,注意大小写:
--导出表的情况
EXEC master..xp_cmdshell 'bcp 数据库名.dbo.表名 out "c:\test.xls" /c -/S"服务器名" /U"用户名" -P"密码"'

--导出查询的情况
EXEC master..xp_cmdshell 'bcp "SELECT au_fname, au_lname FROM pubs..authors ORDER BY au_lname" queryout "c:\test.xls" /c -/S"服务器名" /U"用户名" -P"密码"'




--下面是导出真正Excel文件的方法:

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_exporttb]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[p_exporttb]
GO




create proc p_exporttb
@tbname sysname,    --要导出的表名
@path nvarchar(1000),   --文件存放目录
@fname nvarchar(250)=''   --文件名,默认为表名
as
declare @err int,@src nvarchar(255),@desc nvarchar(255),@out int
declare @obj int,@constr nvarchar(1000),@sql varchar(8000),@fdlist varchar(8000)

--参数检测
if isnull(@fname,'')='' set @fname=@tbname+'.xls'

--检查文件是否已经存在
if right(@path,1)<>'\' set @path=@path+'\'
create table #tb(a bit,b bit,c bit)
set @sql=@path+@fname
insert into #tb exec master..xp_fileexist @sql

--数据库创建语句
set @sql=@path+@fname
if exists(select 1 from #tb where a=1)
set @constr='DRIVER={Microsoft Excel Driver (*.xls)};DSN='''';READONLY=FALSE'
       +';CREATE_DB="'+@sql+'";DBQ='+@sql
else
set @constr='Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="Excel 8.0;HDR=YES'
    +';DATABASE='+@sql+'"'


--连接数据库
exec @err=sp_oacreate 'adodb.connection',@obj out
if @err<>0 goto lberr

exec @err=sp_oamethod @obj,'open',null,@constr
if @err<>0 goto lberr



--创建表的SQL
select @sql='',@fdlist=''
select @fdlist=@fdlist+',['+a.name+']'
,@sql=@sql+',['+a.name+'] '
   +case
    when b.name like '%char'
    then case when a.length>255 then 'memo'
     else 'text('+cast(a.length as varchar)+')' end
    when b.name like '%int' or b.name='bit' then 'int'
    when b.name like '�tetime' then 'datetime'
    when b.name like '%money' then 'money'
    when b.name like '%text' then 'memo'
    else b.name end
FROM syscolumns a left join systypes b on a.xtype=b.xusertype
where b.name not in('image','uniqueidentifier','sql_variant','varbinary','binary','timestamp')
and object_id(@tbname)=id
select @sql='create table ['+@tbname
+']('+substring(@sql,2,8000)+')'
,@fdlist=substring(@fdlist,2,8000)
exec @err=sp_oamethod @obj,'execute',@out out,@sql
if @err<>0 goto lberr

exec @err=sp_oadestroy @obj

--导入数据
set @sql='openrowset(''MICROSOFT.JET.OLEDB.4.0'',''Excel 8.0;HDR=YES;IMEX=1
   ;DATABASE='+@path+@fname+''',['+@tbname+'$])'

exec('insert into '+@sql+'('+@fdlist+') select '+@fdlist+' from '+@tbname)

return

lberr:
exec sp_oageterrorinfo 0,@src out,@desc out
lbexit:
select cast(@err as varbinary(4)) as 错误号
   ,@src as 错误源,@desc as 错误描述
select @sql,@constr,@fdlist
go



if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_exporttb]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[p_exporttb]
GO




create proc p_exporttb
@sqlstr varchar(8000),   --查询语句,如果查询语句中使用了order by ,请加上top 100 percent
@path nvarchar(1000),   --文件存放目录
@fname nvarchar(250),   --文件名
@sheetname varchar(250)=''  --要创建的工作表名,默认为文件名
as
declare @err int,@src nvarchar(255),@desc nvarchar(255),@out int
declare @obj int,@constr nvarchar(1000),@sql varchar(8000),@fdlist varchar(8000)

--参数检测
if isnull(@fname,'')='' set @fname='temp.xls'
if isnull(@sheetname,'')='' set @sheetname=replace(@fname,'.','#')

--检查文件是否已经存在
if right(@path,1)<>'\' set @path=@path+'\'
create table #tb(a bit,b bit,c bit)
set @sql=@path+@fname
insert into #tb exec master..xp_fileexist @sql

--数据库创建语句
set @sql=@path+@fname
if exists(select 1 from #tb where a=1)
set @constr='DRIVER={Microsoft Excel Driver (*.xls)};DSN='''';READONLY=FALSE'
       +';CREATE_DB="'+@sql+'";DBQ='+@sql
else
set @constr='Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="Excel 8.0;HDR=YES'
    +';DATABASE='+@sql+'"'

--连接数据库
exec @err=sp_oacreate 'adodb.connection',@obj out
if @err<>0 goto lberr

exec @err=sp_oamethod @obj,'open',null,@constr
if @err<>0 goto lberr

--创建表的SQL
declare @tbname sysname
set @tbname='##tmp_'+convert(varchar(38),newid())
set @sql='select * into ['+@tbname+'] from('+@sqlstr+') a'
exec(@sql)

select @sql='',@fdlist=''
select @fdlist=@fdlist+',['+a.name+']'
,@sql=@sql+',['+a.name+'] '
   +case
    when b.name like '%char'
    then case when a.length>255 then 'memo'
     else 'text('+cast(a.length as varchar)+')' end
    when b.name like '%int' or b.name='bit' then 'int'
    when b.name like '�tetime' then 'datetime'
    when b.name like '%money' then 'money'
    when b.name like '%text' then 'memo'
    else b.name end
FROM tempdb..syscolumns a left join tempdb..systypes b on a.xtype=b.xusertype
where b.name not in('image','uniqueidentifier','sql_variant','varbinary','binary','timestamp')
and a.id=(select id from tempdb..sysobjects where name=@tbname)

if @@rowcount=0 return

select @sql='create table ['+@sheetname
+']('+substring(@sql,2,8000)+')'
,@fdlist=substring(@fdlist,2,8000)

exec @err=sp_oamethod @obj,'execute',@out out,@sql
if @err<>0 goto lberr

exec @err=sp_oadestroy @obj

--导入数据
set @sql='openrowset(''MICROSOFT.JET.OLEDB.4.0'',''Excel 8.0;HDR=YES
   ;DATABASE='+@path+@fname+''',['+@sheetname+'$])'

exec('insert into '+@sql+'('+@fdlist+') select '+@fdlist+' from ['+@tbname+']')

set @sql='drop table ['+@tbname+']'
exec(@sql)
return

lberr:
exec sp_oageterrorinfo 0,@src out,@desc out
lbexit:
select cast(@err as varbinary(4)) as 错误号
   ,@src as 错误源,@desc as 错误描述
select @sql,@constr,@fdlist
go

来源：https://www.cnblogs.com/lenovo512023499/p/15851636.html