本文内容严重参考了网上其他牛人的代码，并做了一些修改，使得参数更加简单，结构更清晰，所以就厚着脸皮说是原创。
uses DBGridEhImpExp;
procedure TFrm_func.DbGridEhToExcel(ADgEh: TDBGridEh);
var
ExpClass: TDBGridEhExportclass;
Ext: string;
FSaveDialog: TSaveDialog;
begin
try
if ADgEh.DataSource.DataSet.IsEmpty then
begin
Application.MessageBox(PChar(‘没有可导出的数据‘), PChar(‘提示‘), MB_OK +
MB_ICONINFORMATION);
exit;
end;
FSaveDialog := TSaveDialog.Create(Self);
FSaveDialog.Filter :=
‘Excel 文档 (*.xls)|*.XLS|Text files (*.txt)|*.TXT|Comma separated values (*.csv)|*.CSV|HTML file (*.htm)|*.HTM|Word 文档 (*.rtf)|*.RTF‘;
if FSaveDialog.Execute and (trim(FSaveDialog.FileName) <> ‘‘) then
begin
case FSaveDialog.FilterIndex of
1:
begin
ExpClass := TDBGridEhExportAsXLS;
Ext := ‘xls‘;
end;
2:
begin
ExpClass := TDBGridEhExportAsText;
Ext := ‘txt‘;
end;
3:
begin
ExpClass := TDBGridEhExportAsCSV;
Ext := ‘csv‘;
end;
4:
begin
ExpClass := TDBGridEhExportAsHTML;
Ext := ‘htm‘;
end;
5:
begin
ExpClass := TDBGridEhExportAsRTF;
Ext := ‘rtf‘;
end;
end;
if ExpClass <> nil then
begin
if UpperCase(Copy(FSaveDialog.FileName, Length(FSaveDialog.FileName) -
2, 3)) <> UpperCase(Ext) then
FSaveDialog.FileName := FSaveDialog.FileName + ‘.‘ + Ext;
if FileExists(FSaveDialog.FileName) then
begin
if application.MessageBox(‘文件名已存在，是否覆盖 ‘, ‘提示‘,
MB_ICONASTERISK or MB_OKCANCEL) <> idok then
exit;
end;
Screen.Cursor := crHourGlass;
SaveDBGridEhToExportFile(ExpClass, ADgEh, FSaveDialog.FileName, true);
Screen.Cursor := crDefault;
MessageBox(Handle, ‘导出成功 ‘, ‘提示‘, MB_OK +
MB_ICONINFORMATION);
end;
end;
FSaveDialog.Destroy;
except
on e: exception do
begin
Application.MessageBox(PChar(e.message), ‘错误‘, MB_OK + MB_ICONSTOP);
end;
end;
end;