如何在此LINQ中獲取文檔名稱？

Question

下面是我的LINQ

IQueryable<DocumentMapper> query = (from c in entities.tTOCStructures 
                join e in entities.tUsers on c.CreatedBy equals e.UserUID 
                group c by c.FolderID into docs 
                where documentIds.Contains(docs.Key) 
                select new DocumentMapper() 
                { 
                 //DocumentName = Document Name 
                 //Owner = e.FirstName + " " + e.LastName, 
                 Editors = (from f in entities.tUsers join g in entities.tCheckoutViewUsers on f.UserUID equals g.ViewUserid where g.IsEditor == true && documentIds.Contains(g.DocumentID) select (f.FirstName + " " + f.LastName)), 
                 Approvers = (from f in entities.tUsers join g in entities.tCheckoutViewUsers on f.UserUID equals g.ViewUserid where g.IsApprover == true && documentIds.Contains(g.DocumentID) select (f.FirstName + " " + f.LastName)), 
                 Reviewers = (from f in entities.tUsers join g in entities.tCheckoutViewUsers on f.UserUID equals g.ViewUserid where g.IsReviewer == true && documentIds.Contains(g.DocumentID) select (f.FirstName + " " + f.LastName)) 
                }); 
       documents = query.ToList<DocumentMapper>(); 

我得到的文檔名稱&業主在上面LINQ怎麼辦。

的關係如下： -

一個文檔都會有一個文件名稱&所有者但多個編輯，批准，評審。

類： -

public class DocumentMapper 
{ 
    public string DocumentName { get; set; } 

    public string Owner { get; set; } 

    public IEnumerable<string> Editors { get; set; } 

    public IEnumerable<string> Reviewers { get; set; } 

    public IEnumerable<string> Approvers { get; set; } 

} 

如果提高這個LINQ任何建議，很想聽聽

Answer 1

我寧願猜測，但下面的代碼，你可能要做出選擇並採取第一項。除非（如上所述）您提供更多代碼，否則我無法再提供幫助。

DocumentName = ((from f in entities.tUsers join g in entities.tCheckoutViewUsers on f.UserUID equals g.ViewUserid where g.IsEditor == true && documentIds.Contains(g.DocumentID) select (g.DocumentName)).First(),