private void PopulateSector()
        {
            ComSubSector  objComSubSector  = new ComSubSector();
            SectorService objWebService    = new SectorService();
            DataTable     dtPopulateSector = null;

            objComSubSector.Lang          = Session["LanguageSetting"].ToString();
            objWebService.AuthSoapHdValue = ServiceAuth.ServiceAuthenticationSector();
            dtPopulateSector = objWebService.PopulateAllSectors(objComSubSector);
            if (dtPopulateSector != null && dtPopulateSector.Rows.Count > 0)
            {
                ddlSector.DataSource     = dtPopulateSector;
                ddlSector.DataValueField = "SECTOR_ID";
                ddlSector.DataTextField  = "SECTOR_NAME";
                ddlSector.DataBind();
                ddlSector.Items.Insert(0, "--छान्नुहोस्--");
            }
        }