public async Task <IActionResult> OnPostDeleteAsync(long id)
        {
            /*
             *   2 - Namespace in Datastore. It is used as TenantID in multi-tenant system here
             *   PROD - Environment. Can be Production, Testing, Development or etc
             */
            ItemMasterProxy iprox = new ItemMasterProxy("2", "PROD");
            await iprox.DeleteAsync(id);

            return(RedirectToPage());
        }