Export to excel

Hello sir,

           I am walmik, i have a gridview control i just want to export to excel i try your code but code execute successfully. but not going to convert to excel plz tell me solution........

       Response.Clear();                 Response.Buffer = true;                 Response.AddHeader("content-disposition",                  "attachment;filename=GridViewExport.xls");                 Response.Charset = "";                 Response.ContentType = "application/vnd.ms-excel";                 StringWriter sw = new StringWriter();                 HtmlTextWriter hw = new HtmlTextWriter(sw);                 //  GridView1.AllowPaging = false;                 //  GridView1.DataBind();                 //Change the Header Row back to white color                 GV_Final_Billing.HeaderRow.Style.Add("background-color", "#FFFFFF");                 //Apply style to Individual Cells                 GV_Final_Billing.HeaderRow.Cells[0].Style.Add("background-color", "green");                 GV_Final_Billing.HeaderRow.Cells[1].Style.Add("background-color", "green");                 GV_Final_Billing.HeaderRow.Cells[2].Style.Add("background-color", "green");                 GV_Final_Billing.HeaderRow.Cells[3].Style.Add("background-color", "green");                 for (int i = 0; i < GV_Final_Billing.Rows.Count; i++)                 {                     GridViewRow row = GV_Final_Billing.Rows[i];                     //Change Color back to white                     row.BackColor = System.Drawing.Color.White;                     //Apply text style to each Row                     row.Attributes.Add("class", "textmode");                     //Apply style to Individual Cells of Alternating Row                     if (i % 2 != 0)                     {                         row.Cells[0].Style.Add("background-color", "#C2D69B");                         row.Cells[1].Style.Add("background-color", "#C2D69B");                         row.Cells[2].Style.Add("background-color", "#C2D69B");                         row.Cells[3].Style.Add("background-color", "#C2D69B");                     }                 }                 GV_Final_Billing.RenderControl(hw);                 //style to format numbers to string                 string style = @"<style> .textmode { mso-number-format:\@; } </style>";                 Response.Write(style);                 Response.Output.Write(sw.ToString());                 Response.Flush();                 Response.End();

 Response.Clear();
                Response.Buffer = true;

                Response.AddHeader("content-disposition",
                 "attachment;filename=GridViewExport.xls");
                Response.Charset = "";
                Response.ContentType = "application/vnd.ms-excel";
                StringWriter sw = new StringWriter();
                HtmlTextWriter hw = new HtmlTextWriter(sw);

                //  GridView1.AllowPaging = false;
                //  GridView1.DataBind(); 

                //Change the Header Row back to white color
                GV_Final_Billing.HeaderRow.Style.Add("background-color", "#FFFFFF");

                //Apply style to Individual Cells
                GV_Final_Billing.HeaderRow.Cells[0].Style.Add("background-color", "green");
                GV_Final_Billing.HeaderRow.Cells[1].Style.Add("background-color", "green");
                GV_Final_Billing.HeaderRow.Cells[2].Style.Add("background-color", "green");
                GV_Final_Billing.HeaderRow.Cells[3].Style.Add("background-color", "green");

                for (int i = 0; i < GV_Final_Billing.Rows.Count; i++)
                {
                    GridViewRow row = GV_Final_Billing.Rows[i];

                    //Change Color back to white
                    row.BackColor = System.Drawing.Color.White;

                    //Apply text style to each Row
                    row.Attributes.Add("class", "textmode");

                    //Apply style to Individual Cells of Alternating Row
                    if (i % 2 != 0)
                    {
                        row.Cells[0].Style.Add("background-color", "#C2D69B");
                        row.Cells[1].Style.Add("background-color", "#C2D69B");
                        row.Cells[2].Style.Add("background-color", "#C2D69B");
                        row.Cells[3].Style.Add("background-color", "#C2D69B");
                    }
                }
                GV_Final_Billing.RenderControl(hw);

                //style to format numbers to string
                string style = @"<style> .textmode { mso-number-format:\@; } </style>";
                Response.Write(style);
                Response.Output.Write(sw.ToString());
                Response.Flush();
                Response.End();