public TallasModel GetTallasXCodigo(string pass, string codigos, int id_almacen = 1)
        {
            //http://erp.obairlines.bo/pxp/lib/rest/almacenes/Clasificacion/listarClasificacionRopaTrabajoTalla
            string userERP = WebConfigurationManager.AppSettings["userEnde"];

            pass = WebConfigurationManager.AppSettings["passEnde"];

            //string pwd = pass;
            //System.Security.Cryptography.MD5 hs = System.Security.Cryptography.MD5.Create;
            //byte[] db = hs.ComputeHash(System.Text.Encoding.UTF8.GetBytes(pwd));
            //string result = Convert.ToBase64String(db);
            //pass = result;

            pass = "******";
            string uri = UrlBase + "almacenes/Clasificacion/listarClasificacionRopaTrabajoTalla";
            Dictionary <string, string> parametros = new Dictionary <string, string>();

            parametros.Add("filtro", codigos);
            parametros.Add("start", "0");
            parametros.Add("limit", "200");

            string      jsonString = REST.GetResponse_POST(uri, parametros, "application/x-www-form-urlencoded", userERP, pass);
            TallasModel data       = new TallasModel();

            data = JsonConvert.DeserializeObject <TallasModel>(jsonString);

            //if (string.IsNullOrWhiteSpace(jsonString))
            //{
            //    return new TallasModel();
            //}
            //TallasModel resultado = new JavaScriptSerializer()
            //   .Deserialize<TallasModel>(jsonString);
            return(data);
        }