exporter un gridview sans un lien hypertext

Bonjour, j'ai un gridview que je vais exporter vers excel sauf que ce dernier contient un lien mon but est d'exporter mon gridview sans ce lien. mon code actuel est :
Code:
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 protected void ExporterTout_Click(object sender, EventArgs e)
    {
        if (gridRecherche.Rows.Count == 0)
        {
            Page.ClientScript.RegisterStartupScript(this.GetType(), "Information", "alert('Aucune information à télécharger');", true);
        }
        else
        {
            string nmFile = "Export_" + System.DateTime.Now.Day + "_" + System.DateTime.Now.Month + "_" + System.DateTime.Now.Year + ".xls";
 
            Response.Clear();
            Response.Buffer = true;
            Response.AddHeader("content-disposition", "attachment;filename=" + nmFile);
            Response.Charset = "";
            Response.ContentType = "application/vnd.ms-excel";
 
            using (StringWriter sw = new StringWriter())
            {
                HtmlTextWriter hw = new HtmlTextWriter(sw);
 
                //To Export all pages
                gridRecherche.AllowPaging = false;
                this.fillGridRecherche();
 
                gridRecherche.HeaderRow.BackColor = Color.White;
                foreach (TableCell cell in gridRecherche.HeaderRow.Cells)
                {
                    cell.BackColor = gridRecherche.HeaderStyle.BackColor;
                }
                foreach (GridViewRow row in gridRecherche.Rows)
                {
                    row.BackColor = Color.White;
                    foreach (TableCell cell in row.Cells)
                    {
                        if (row.RowIndex % 2 == 0)
                        {
                            cell.BackColor = gridRecherche.AlternatingRowStyle.BackColor;
                        }
                        else
                        {
                            cell.BackColor = gridRecherche.RowStyle.BackColor;
                        }
                        cell.CssClass = "textmode";
                    }
                }
 
                gridRecherche.RenderControl(hw);
 
                //style to format numbers to string
                string style = @"<style> .textmode { } </style>";
                Response.Write(style);
                Response.Output.Write(sw.ToString());
                Response.Flush();
                Response.End();
            }
        }
    }