不允许循环文件引用。 [英] Circular file references are not allowed.

问题描述

我在三个差异目录中创建了3个用户控件（Comment，Comment1，Comment2），如

Comment.ascx

Comment1.ascx

Comment2.ascx





按以下方式参考：



Comment.ascx> Comment1.ascx

Comment1.ascx> Comment2.ascx

Comment2.ascx> Comment.ascx





得到如下错误：

循环文件引用是不允许。 
 

根据我设置的一些论坛

批在网络配置文件中=false

但我仍然收到错误。

有没有解决办法？

解决方案

循环引用的问题在于编译器无法决定首先编译哪个组件...

所以唯一的选择是通过重新设计应用程序来删除这种循环依赖关系......

1。据我所知，不可能有循环引用。



2.解决方案是重新设计控件以避免此循环引用。

您可以使用递归代码执行此操作。实际的解决方案将根据您的数据以及您如何访问它而改变，但这是要点。所有文件都在网站的根目录中。



CommentObject.cs

 使用系统; 
 使用 System.Collections.Generic; 
 使用 System.Linq; 
 使用 System.Web; 
 
 命名空间 MyNamespace 
 {
  public   class  CommentObject 
 {
  public   int  ID { get ;  set ; } 
  public   int  ParentID { get ;  set ; } 
  public   string 作者{ get ;  set ; } 
  public   string 正文{ get ;  set ; } 
  public  List< CommentObject>回复{获取;  set ; } 
} 
} 

Comment.ascx

 <％@    控制   语言  =  C＃    AutoEventWireup   =  true    CodeBehind   =  Comment.ascx.cs   继承  =  MyNamespace.Comment   ％>  
 <   div     style   =  border：1px dashed #aaaaaa; margin-left：30px; >  
 <   h2  >  <   asp：Literal     ID   =  LiteralAuthor    runat   =  server    /  >  <   / h2  >  
 
 <   div  >  <   asp：Literal     ID   =  LiteralBody    runat   =  server    /  >  <  < span class =code-leadattribute> / div  >  
 
 < ;   asp：PlaceHolder     ID   =  PlaceReplies    runat   =  ser ver    /  >  
 <   / div  >  

Comment.ascx.cs

 使用系统; 
 使用 System.Collections.Generic; 
 使用 System.Linq; 
 使用 System.Web; 
 使用 System.Web.UI; 
 使用 System.Web.UI.WebControls; 
 
 命名空间 MyNamespace 
 {
  public   partial   class 注释：System.Web.UI.UserControl 
 {
  public  CommentObject CommentObject { get ;  set ; } 
 
 受保护  void  Page_Load（ object  sender，EventArgs e）
 {
 LiteralAuthor.Text =  this  .CommentObject.Author; 
 LiteralBody.Text =  this  .CommentObject.Body; 
} 
} 
} 

TestPage.aspx

 <  表格    id   =  form1    runat   =  server >  
 
 <   asp：PlaceHolder     ID   =  PlaceComments    runat   =  server    /  >  
 
 <   / form  >  

TestPage.aspx.cs

  protected   void  Page_Load（ object  sender，EventArgs e）
 {
 < span class =code-comment> //  建立评论树 
  / /  如何执行此操作取决于您的数据结构，您可能 
  //  甚至想在ShowComments方法中动态加载数据 
 List< CommentObject> comments =  new  List< CommentObject>（）; 
 
 comments.Add（ new  CommentObject {ID =  1 ，作者= < span class =code-string> 作者A，Body =  < span class =code-string> Comment 1}）; 
 comments.Add（ new  CommentObject {ID =  2 ，作者=  作者B，Body =  评论2}）; 
 comments.Add（ new  CommentObject {ID =  3 ，作者=  作者C，Body =  评论3}）; 
 comments.Add（ new  CommentObject {ID =  4 ，作者=  作者D，Body =  评论4}）; 
 
  //  添加对评论2的回复 
 CommentObject comment =评论。单（c = >  c.ID ==  2 ）; 
 comment.Replies =  new  List< CommentObject>（）; 
 comment.Replies.Add（ new  CommentObject {ID =  5 ，作者=  作者A，Body =  评论5}）; 
 comment.Replies.Add（ new  CommentObject {ID =  6 ，作者=  作者C，Body =  评论6}）; 
 comment.Replies.Add（ new  CommentObject {ID =  7 ，作者=  作者D，Body =  评论7}）; 
 
  //  添加对评论6的回复 
 comment = comment .Replies。 Single （c = >  c.ID ==  6 ）; 
 comment.Replies =  new  List< CommentObject>（）; 
 comment.Replies.Add（ new  CommentObject {ID =  8 ，作者=  作者A，Body =  评论8}）; 
 comment.Replies.Add（ new  CommentObject {ID =  9 ，作者=  作者F，Body =  评论9}）; 
 
 ShowComments（PlaceComments，comments）; 
} 
 
  private   void  ShowComments（PlaceHolder placeHolder，List< CommentObject> comments）
 {
  foreach （CommentObject comment  in  comments）
 {
评论ctlComment =（Comment）LoadControl（ 〜/ Comment.ascx ）; 
 ctlComment.CommentObject = comment; 
 
 placeHolder.Controls.Add（ctlComment）; 
 
  if （comment.Replies！=  null && comment。 Replies.Any（））
 {
 ShowComments（（PlaceHolder）ctlComment.FindControl（  PlaceReplies ），comment.Replies）; 
} 
} 
} 

I have created 3 user controls in three difference directories(Comment,Comment1,Comment2) like
Comment.ascx
Comment1.ascx
Comment2.ascx


Reference those as per give below:

Comment.ascx > Comment1.ascx
Comment1.ascx > Comment2.ascx
Comment2.ascx > Comment.ascx


And getting error like:

Circular file references are not allowed.

As per some of forum I have set

batch="false"

in web config file but still I am getting error.
Is there any solution for that ?

解决方案

The problem with circular references is that the compiler can not decide which component compile first...
So the only option is to remove such circular dependencies by re-design your application...

1. As I know is not possible to have circular references.

2. The solution is to redesign you controls to avoid this circular references.

You can do this using recursive code. The actual solution will change depending on what your data looks like and how you access it, but this is the gist. All files are in the root of the site.

CommentObject.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace MyNamespace
{
    public class CommentObject
    {
        public int ID { get; set; }
        public int ParentID { get; set; }
        public string Author { get; set; }
        public string Body { get; set; }
        public List<CommentObject> Replies { get; set; }
    }
}

Comment.ascx

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="Comment.ascx.cs" Inherits="MyNamespace.Comment" %>
<div style="border: 1px dashed #aaaaaa; margin-left:30px;">
    <h2><asp:Literal ID="LiteralAuthor" runat="server" /></h2>

    <div><asp:Literal ID="LiteralBody" runat="server" /></div>

    <asp:PlaceHolder ID="PlaceReplies" runat="server" />
</div>

Comment.ascx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace MyNamespace
{
    public partial class Comment : System.Web.UI.UserControl
    {
        public CommentObject CommentObject { get; set; }

        protected void Page_Load(object sender, EventArgs e)
        {
            LiteralAuthor.Text = this.CommentObject.Author;
            LiteralBody.Text = this.CommentObject.Body;
        }
    }
}

TestPage.aspx

<form id="form1" runat="server">

<asp:PlaceHolder ID="PlaceComments" runat="server" />

</form>

TestPage.aspx.cs

protected void Page_Load(object sender, EventArgs e)
{
    // build up a tree of comments
    // how you do this depends on your data structure, you might
    // even want to load data on the fly in the ShowComments method instead
    List<CommentObject> comments = new List<CommentObject>();

    comments.Add(new CommentObject { ID = 1, Author = "Author A", Body = "Comment 1" });
    comments.Add(new CommentObject { ID = 2, Author = "Author B", Body = "Comment 2" });
    comments.Add(new CommentObject { ID = 3, Author = "Author C", Body = "Comment 3" });
    comments.Add(new CommentObject { ID = 4, Author = "Author D", Body = "Comment 4" });

    // add replies to comment 2
    CommentObject comment = comments.Single(c => c.ID == 2);
    comment.Replies = new List<CommentObject>();
    comment.Replies.Add(new CommentObject { ID = 5, Author = "Author A", Body = "Comment 5" });
    comment.Replies.Add(new CommentObject { ID = 6, Author = "Author C", Body = "Comment 6" });
    comment.Replies.Add(new CommentObject { ID = 7, Author = "Author D", Body = "Comment 7" });

    // add replies to comment 6
    comment = comment.Replies.Single(c => c.ID == 6);
    comment.Replies = new List<CommentObject>();
    comment.Replies.Add(new CommentObject { ID = 8, Author = "Author A", Body = "Comment 8" });
    comment.Replies.Add(new CommentObject { ID = 9, Author = "Author F", Body = "Comment 9" });

    ShowComments(PlaceComments, comments);
}

private void ShowComments(PlaceHolder placeHolder, List<CommentObject> comments)
{
    foreach(CommentObject comment in comments)
    {
        Comment ctlComment = (Comment) LoadControl("~/Comment.ascx");
        ctlComment.CommentObject = comment;

        placeHolder.Controls.Add(ctlComment);

        if (comment.Replies != null && comment.Replies.Any())
        {
            ShowComments((PlaceHolder)ctlComment.FindControl("PlaceReplies"), comment.Replies);
        }
    }
}

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