分页 LDap 搜索失败并显示“请求的属性不存在"；

Paged LDap search fails with quot;The requested attribute does not existsquot;(分页 LDap 搜索失败并显示“请求的属性不存在；)

问题描述

我需要使用使用 .NET/C# 实现的 Ldap 搜索来获取epersonstatus=REMOVE"的所有员工的员工编号"，例如:

I need to get the 'employeenumber' of all the employees whose 'epersonstatus=REMOVE' using an Ldap search implemented using .NET/C# like:

var connection = new LdapConnection("foo.bar.com:389");

connection.AuthType = AuthType.Anonymous;
connection.SessionOptions.ProtocolVersion = 3;
connection.Bind();

var request = new SearchRequest(
                 "dc=root,dc=com",
                 "(epersonstatus=REMOVE)", 
                 SearchScope.Subtree,
                 new string[] { "employeenumber" }); 

由于有数千个条目，我正在使用此处建议的分页请求:http://dunnry.com/blog/PagingInSystemDirectoryServicesProtocols.aspx

Since there are thousands of entries I am using paged requests as proposed here: http://dunnry.com/blog/PagingInSystemDirectoryServicesProtocols.aspx

我还检查了服务器是否支持此处建议的分页请求:iPlanet LDAP 和 C# PageResultRequestControl

I have also checked that the server supports paged requests as proposed here: iPlanet LDAP and C# PageResultRequestControl

一旦流量到达:

SearchResponse response = connection.SendRequest(request) as SearchResponse;

我收到一个带有消息请求的属性不存在"的 DirectoryOperationException.

I get a DirectoryOperationException with message "The requested attribute does not exist".

通过在像 softerra 这样的 LDap 客户端上运行相同的查询，我得到了条目(一千个)和错误.

By running the same query on a LDap client like softerra I get the entries (a thousand) and the error.

我们将不胜感激.

推荐答案

我遇到了类似的问题.

当使用分页搜索时，我得到了异常服务器不支持该控件.该控件很关键."，当使用非分页搜索时，我收到了结果(至少只要过滤器限制了最大数量).

When using paged search, I got the exception "The server does not support the control. The control is critical.", when using non-paged search I received results (at least as long as the filter restricted the maximum number).

但我发现，错误消息具有误导性 - 问题隐藏在身份验证中.

However I found out, that the error message is misleading - The problem was buried in the authentication.

使用 AuthType.Basic(或 AuthType.Anonymous)我收到了错误.我切换到 AuthType.Ntlm 后，它就开始工作了.

Using AuthType.Basic (or AuthType.Anonymous) I received the error. Bus as soon as I switched to AuthType.Ntlm it worked.

希望这会有所帮助...

Hope this helps...

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