public void ExportData(GridView obj) { try { obj.AllowSorting = false; string style = ""; if (obj.Rows.Count > 0) { style = @"<style> .text { mso-number-format:@; } </script> "; } else { style = "no data."; } HttpContext.Current.Response.ClearContent(); DateTime dt = DateTime.Now; string filename = dt.Year.ToString() + dt.Month.ToString() + dt.Day.ToString() + dt.Hour.ToString() + dt.Minute.ToString() + dt.Second.ToString(); HttpContext.Current.Response.AddHeader("content-disposition", "attachment; filename=" + filename + ".xls"); HttpContext.Current.Response.ContentType = "application/ms-excel"; HttpContext.Current.Response.Charset = "GB2312"; HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312"); StringWriter sw = new StringWriter(); HtmlTextWriter htw = new HtmlTextWriter(sw); obj.RenderControl(htw); HttpContext.Current.Response.Write(style); HttpContext.Current.Response.Write(sw.ToString()); HttpContext.Current.Response.End(); } catch (Exception ex) { throw ex; } }