如何使用 C# 按用户名搜索 Active Directory?

How can I search Active Directory by username using C#?(如何使用 C# 按用户名搜索 Active Directory?)

问题描述

我正在尝试通过用户名admin"搜索活动目录.我知道目录中存在具有该用户名的用户，但搜索一直没有结果.

I'm trying to search active directory by the username 'admin'. I know for a fact that there is a user with that username in the directory, but the search keeps coming back with nothing.

var attributeName = "userPrincipalName";
var searchString = "admin"
var ent = new DirectoryEntry("LDAP://"dc=corp,dc=contoso,dc=com")
var mySearcher = new DirectorySearcher(ent);
mySearcher.Filter = string.Format("(&(objectClass=user)({0}={1}))", attributeName, searchString);

var userResult = mySearcher.FindOne();

userResult 总是以 null 结束.我很想知道为什么，一定有我遗漏的东西.

userResult always ends up null. I would love to know why, there must be something that I'm missing.

推荐答案

原来userPrincipalName"需要全部小写(userprincipalname").很高兴知道，感谢您的回复.

It turns out that "userPrincipalName" needed to be all lower-case ("userprincipalname"). Good to know, thanks for your responses.

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