public async Task <ICollection <LabelManageModel> > GetAllAsync(string user, long group) { var models = await _repository.GetAllAsync(x => x.Group); var results = models .Where(g => g.GroupId.Equals(group) && g.Group.GroupUser.Any(gu => gu.UserId.Equals(user))) .OrderBy(x => x.Name); return(_mapper.Map <ICollection <LabelManageModel> >(results)); }