public List <_Entity> GetEntities([FromQuery] _EntityFilter filter)
 {
     filter = filter ?? new _EntityFilter();
     return(EntityService.Query(
                sortField: filter.SortField,
                sortDirection: (SortDirections?)filter.SortDirection,
                pageSize: filter.PageSize,
                pageNumber: filter.PageNumber));
 }
 public int CountEntities([FromQuery] _EntityFilter filter)
 {
     filter = filter ?? new _EntityFilter();
     return(EntityService.Count());
 }