public IActionResult Get(int id, int mid) { if (!_flowRepository.FlowExist(id)) { return(NotFound()); } var result = _flowRepository.GetMaterialForFlow(id, mid); if (result == null) { return(NotFound()); } //var m = result.Materials.SingleOrDefault(x => x.Id == mid); //if (m == null) //{ // return NotFound(); //} var re = new Material { Id = result.Id, Name = result.Name }; return(Ok(new JsonResult(re))); }