請教各位大大，如題Lambada是否可以內嵌函數取值呢?
程式碼（全）

List<MemberToConferenceTrackViewModel> result = db.MemberToConferences.Where(mc => mc.MemberId == MemberId && mc.Role == Role).
    Join(db.Conferences.Where(c => c.Enabled == true),
    m => m.ConferenceId,
    c => c.ConferenceId,
    (m, c) => new { m, c })
    .Join(db.EditTrackAssignments.Where(eta => eta.DirectorId == MemberId),
    m => m.m.MemberId,
    e => e.DirectorId,
    (m, e) => new
    {
        e.TrackId,
        m.m.ConferenceId,
        m.m.MemberId,
        m.c.ConferenceTitle
    }).Join(db.ConferenceTracks, x => x.TrackId, ct => ct.TrackId,
    (x, ct) => new
    {
        x.ConferenceId,
        x.ConferenceTitle,
        x.MemberId,
        ct.TrackId,
        ct.TrackTitle
    }).Join(db.Members, x => x.MemberId, m => m.MemberId,
    (x, m) => new MemberToConferenceTrackViewModel
    {
        ConferenceId = x.ConferenceId,
        ConferenceTitle = x.ConferenceTitle,
        MemberId = x.MemberId,
        MemberName = m.Name,
        TrackId = x.TrackId,
        TrackTitle = x.TrackTitle,
        PaperNum = GetStatusPaperNumbers(x.ConferenceId, 5)
    })
    .ToList();

取值時其中一個變數想要透過另外函數統計取值，但報錯！

LINQ to Entities 無法辨識方法 'Int32 GetStatusPaperNumbers(Int32, Int32)' 方法，而且這個方法無法轉譯成存放區運算式。

取值程式碼如下

PaperNum = GetStatusPaperNumbers(x.ConferenceId, 5)

目前知道的方法是可以ToList()輸出後再重新用ForEach跑廻圈帶函數取值？
請問是否有其它更好的方法可以替代解決呢？