public IActionResult GetProviderSelect()
        {
            IEnumerable <Provider> lista = pBS.GetProviderList();

            return(Ok(lista.Select(e => new LabelAndValue <string>(e.Name, e.ProviderCategory.Code, e)).OrderBy(o => o.Label)));
        }
        public IActionResult GetProviderSelect([FromQuery(Name = "ParentCategory")] string parentCategory)
        {
            IEnumerable <Provider> lista = pBS.GetProviderList(pagesize: 0);

            return(Ok(lista.Select(o => new LabelAndValue <string>(o.Name, o.VendorNo, o)).OrderBy(o => o.Label)));
        }