protected void LinkBtnExportExcel_Click(object sender, EventArgs e)
        {
            try
            {
                System.Threading.Thread.Sleep(2000);
                Response.Clear();
                Response.Buffer = true;
                Response.ClearContent();
                Response.ClearHeaders();
                Response.Charset = "";
                string         FileName       = "SaleProductWiseList.xls";
                StringWriter   strwritter     = new StringWriter();
                HtmlTextWriter htmltextwrtter = new HtmlTextWriter(strwritter);
                Response.Cache.SetCacheability(HttpCacheability.NoCache);
                Response.ContentType = "application/vnd.ms-excel";
                Response.AddHeader("Content-Disposition", "attachment;filename=" + FileName);

                GV_ProSale.GridLines             = GridLines.Both;
                GV_ProSale.HeaderStyle.Font.Bold = true;

                GV_ProSale.RenderControl(htmltextwrtter);

                Response.Write(strwritter.ToString());
                Response.End();
            }
            catch (Exception ex)
            {
                throw;
                //ScriptManager.RegisterStartupScript(this, this.GetType(), "isActive", "Alert();", true);
                //lblalert.Text = ex.Message;
            }
        }
        private void get_ptroyrsal(string yr, string Proid)
        {
            try
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    cmd.CommandText = "select * from v_rptSal where ProductID = " + Proid +
                                      " and CompanyId='" + Session["CompanyID"] + "' and BranchId='" + Session["BranchID"] + "'" +
                                      //cmd.CommandText = "select * from v_rptDSal where  ProductID = '" + Proid +
                                      //  "' and CompanyId='" + Session["CompanyID"] + "' and BranchId='" + Session["BranchID"] +
                                      "' and [YEAR]='" + YR + "'";

                    cmd.Connection = con;
                    con.Open();

                    DataTable      dtprosal = new DataTable();
                    SqlDataAdapter adp      = new SqlDataAdapter(cmd);
                    adp.Fill(dtprosal);
                    if (dtprosal.Rows.Count > 0)
                    {
                        lbl_pro.Text          = dtprosal.Rows[0]["ProductName"].ToString();
                        GV_ProSale.DataSource = dtprosal;
                        GV_ProSale.DataBind();
                    }
                    con.Close();
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }