01.using System.IO;
02.
03.Response.ClearContent();
04.Response.AddHeader("content-disposition", "attachment;filename=Excel_Name.xls");
05.Response.Cache.SetCacheability(HttpCacheability.NoCache);
06.Response.ContentType = "application/ms-excel";
07.StringWriter sw = new StringWriter();
08.HtmlTextWriter htw = new HtmlTextWriter(sw);
09.HtmlForm frm = new HtmlForm();
10.frm.Attributes["runat"] = "server";
11.frm.Controls.Add(GridViewName);
12.qwGVExcel.RenderControl(htw);
13.Response.Write(sw.ToString());
14.Response.End();
