GridView 导出Excle
方法一：
// Response.ContentEncoding = System.Text.Encoding.UTF7;
// Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode("NPRB.xls", System.Text.Encoding.UTF7).ToString());
// Response.ContentType = "application/ms-excel";
// this.EnableViewState = false;
// StringWriter tw = new StringWriter();
// HtmlTextWriter hw = new HtmlTextWriter(tw);
// gdvExcel.Visible = true;
// gdvExcel.RenderControl(hw);
// Response.Write(tw.ToString());
// gdvExcel.Visible = false;
// Response.End();
方法二：
Response.Clear();
//string sText = "<meta http-equiv='Content-Type'; content='text/html';charset='{0}'>";
//sText = String.Format(sText, Encoding.Default.WebName);
Response.Write("<html xmlns:o=\"urn:schemas-microsoft-com:office:office\" xmlns:x=\"urn:schemas-microsoft-com:office:excel\" xmlns=\"http://www.w3.org/TR/REC-html40\">");
//Response.Write("<head>");
Response.Write("<meta http-equiv=Content-Type content=\"text/html; charset=big5\">");
Response.Write("<meta name=ProgId content=Excel.Sheet>");
Response.Write("<meta name=Generator content=\"Microsoft Excel 11\">");
Response.AddHeader("content-disposition", "attachment;filename=NPRB.xls");
Response.ContentEncoding = System.Text.Encoding.UTF7;
Response.Charset = Encoding.Default.WebName;
Response.ContentType = "application/ms-excel";
System.IO.StringWriter sw = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htw = new HtmlTextWriter(sw);
gdvNprb.AllowPaging = false;
gdvNprb.AllowSorting = false;
gdvNprb.EnableViewState = false;
gdvNprb.Columns[0].Visible = false;
gdvNprb.Columns[1].Visible = true;
gdvNprb.Columns[8].Visible = false;
gdvNprb.DataBind();
//dgvPNList.RenderControl(htw);
HtmlForm hf = new HtmlForm();
Controls.Add(hf);
hf.Controls.Add(gdvNprb);
hf.RenderControl(htw);
string output = sw.ToString();
Response.Write(output);
Response.Write("</html>");
Response.End();
