public DataTable FilteringScreenAspectRadio(DataTable dt, String brand)
        {
            ServiceMethods service = new ServiceMethods();

            service.CalcAspectRadio(dt);
            return(service.FilteringScreenAspectRadio(dt, brand));
        }
        public List <string> aspectRatioList(DataTable dt)
        {
            ServiceMethods methods = new ServiceMethods();

            return(methods.CalcAspectRadio(dt));
        }