Delphi dbgrid 导出 excel 方法
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[i].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[i].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[i].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[i].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[i].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
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