LinqKit核心PredicateBuilder不能正常工作

Question

我有一个疑问：

var query = LinqKit.PredicateBuilder.New<Resume>();
if (selectedWorkFieldID != 0)
{
   query = query.And(js => js.WorkFieldID == selectedWorkFieldID);
   if (!(selectedJobIDs.Contains(0) && selectedJobIDs.Count() == 1))
   {
       foreach (int jobID in selectedJobIDs)
          query = query.Or(js => js.JobID == jobID);
   }
}

var finalQuery = context.Resumes.AsNoTracking().Include(r => r.ResumeSkills)
    .ThenInclude(rs => rs.Skill).Include(r => r.JobSeeker).ThenInclude(r => r.Profile)
    .AsExpandable().Where(query);
count = finalQuery.Count();

resumes = finalQuery.Skip(args.Skip.Value).Take(args.Top.Value).ToList<Resume>();

此查询返回所有未过滤的简历。调试时，调试器curser进入使用或筛选的foreach块，选择的jobID中有一个jobID，但查询返回所有的恢复。谓词生成器似乎根本不起作用。如何解决这个问题？

Answer 1

我将代码改为：

if (selectedWorkFieldID != 0)
        {
            query = query.And(js => js.WorkFieldID == selectedWorkFieldID);
            if (!(selectedJobIDs.Contains(0) && selectedJobIDs.Count() == 1))
            {
                var query2 = LinqKit.PredicateBuilder.New<Resume>();
                foreach (int jobID in selectedJobIDs)
                    query2 = query2.Or(js => js.JobID == jobID);
                query.And(query2);
            }
        }

而且它被纠正了。