protected void Page_Load(object sender, EventArgs e)

 {

 //creating a table for the grid use namespace System.Data;

 DataTable dt = new DataTable ();

 //adding columns to the datatale

 try

 {

 dt.Columns.Add("Srno");

 dt.Columns.Add("Name");

 }

 catch { }

 //adding values to the datatable

 for (int i = 1; i <= 10; i++) 

 {

 DataRow dr = dt.NewRow();

 dr[0] = i;

 dr[1] = "Meetu Choudhary " + i.ToString();

 dt.Rows.Add(dr);

 }

 //binding databale to the grid 

 grdtoexport.DataSource = dt;

 grdtoexport.DataBind();

 

 }

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Data;

using System.Configuration;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Text;

using System.IO;

 

 

namespace ExportToExcel

{

 

 /// <summary>

 /// Summary description for ExportToExcel

 /// </summary>

 public class ExportToExcel

 {

 public ExportToExcel()

 {

 //

 // TODO: Add constructor logic here

 //

 }

 public void ExportGridView(GridView GridView1, String strFileName)

 {

 PrepareGridViewForExport(GridView1);

 //string attachment = "attachment; filename=Contacts.xls";

 HttpContext.Current.Response.ClearContent();

 HttpContext.Current.Response.Buffer = true;

 HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=" + strFileName);

 HttpContext.Current.Response.ContentType = "application/ms-excel";

 HttpContext.Current.Response.Charset = "";

 //System.Web.UI.Page.EnableViewState = false;

 StringWriter sw = new StringWriter();

 HtmlTextWriter htw = new HtmlTextWriter(sw);

 GridView1.RenderControl(htw);

 HttpContext.Current.Response.Write(sw.ToString());

 HttpContext.Current.Response.End();

 }

 

 private void PrepareGridViewForExport(Control gv)

 {

 LinkButton lb = new LinkButton();

 Literal l = new Literal();

 

 string name = String.Empty;

 for (int i = 0; i < gv.Controls.Count; i++)

 {

 if (gv.Controls[i].GetType() == typeof(LinkButton))

 {

 l.Text = (gv.Controls[i] as LinkButton).Text;

 gv.Controls.Remove(gv.Controls[i]);

 gv.Controls.AddAt(i, l);

 }

 else if (gv.Controls[i].GetType() == typeof(DropDownList))

 {

 l.Text = (gv.Controls[i] as DropDownList).SelectedItem.Text;

 gv.Controls.Remove(gv.Controls[i]);

 gv.Controls.AddAt(i, l);

 }

 

 else if (gv.Controls[i].GetType() == typeof(CheckBox))

 {

 l.Text = (gv.Controls[i] as CheckBox).Checked ? "True" : "False";

 gv.Controls.Remove(gv.Controls[i]);

 gv.Controls.AddAt(i, l);

 }

 

 if (gv.Controls[i].HasControls())

 {

 PrepareGridViewForExport(gv.Controls[i]);

 }

 }

 }

 

 /*Use this commented function in all the pages where the above export function is used

 //public override void VerifyRenderingInServerForm(Control control)

 //{

 //}*/ 

protected void btnexport_Click(object sender, EventArgs e)

 {

 ExportToExcel ex = new ExportToExcel();

 ex.ExportGridView(grdtoexport, "Client.xls"); 

 }