C# 如何从给定 UserPrincipal 对象的 Active Directory 中获取“公司”和“部门”？
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How to get "Company" and "Department" from Active Directory given a UserPrincipal object?
提问by wgpubs
Is this possible? Code sample would be nice.
这可能吗？代码示例会很好。
采纳答案by Per Noalt
Actually, the question was how to get two of the properties for a .NET 3.5 (System.DirectoryServices.AccountManagement.)UserPrincipal-object not given a userPrincipalName.
实际上，问题是如何为(System.DirectoryServices.AccountManagement.)UserPrincipal没有给定.NET 3.5 对象的两个属性获取userPrincipalName.
Here how to do that with an extension method:
这里如何使用扩展方法做到这一点：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.DirectoryServices;
using System.DirectoryServices.AccountManagement;
namespace MyExtensions
{
public static class AccountManagementExtensions
{
public static String GetProperty(this Principal principal, String property)
{
DirectoryEntry directoryEntry = principal.GetUnderlyingObject() as DirectoryEntry;
if (directoryEntry.Properties.Contains(property))
return directoryEntry.Properties[property].Value.ToString();
else
return String.Empty;
}
public static String GetCompany(this Principal principal)
{
return principal.GetProperty("company");
}
public static String GetDepartment(this Principal principal)
{
return principal.GetProperty("department");
}
}
}
The above code will work in most cases (that is it will work for standard Text/String Single-Value Active Directory attributes). You'll need to modify the code and add more error handling code for your environment.
以上代码适用于大多数情况（即适用于标准文本/字符串单值 Active Directory 属性）。您需要修改代码并为您的环境添加更多错误处理代码。
You use it by add the "Extension Class" to your project and then you can do this:
您可以通过将“扩展类”添加到您的项目来使用它，然后您可以执行以下操作：
PrincipalContext domain = new PrincipalContext(ContextType.Domain);
UserPrincipal userPrincipal = UserPrincipal.FindByIdentity(domain, "youruser");
Console.WriteLine(userPrincipal.GetCompany());
Console.WriteLine(userPrincipal.GetDepartment());
Console.WriteLine(userPrincipal.GetProperty("userAccountControl"));
(BTW; this would have been a great use for Extension Properties - too bad it won't be in C# 4 either.)
（顺便说一句；这对于扩展属性来说是一个很好的用途——太糟糕了，它也不会出现在 C# 4 中。）
回答by Mikael Svenson
Something like this should do it if the department and company properties exist for the user.
如果用户的部门和公司属性存在，则应该执行这样的操作。
DirectoryEntry de = new DirectoryEntry();
de.Path = "LDAP://dnsNameOfYourDC.my.company.com";
DirectorySearcher deSearch = new DirectorySearcher(de);
deSearch.PropertiesToLoad.Add("department");
deSearch.PropertiesToLoad.Add("company");
deSearch.SearchScope = SearchScope.Subtree;
deSearch.Filter = "(&(objectClass=User)(userPrincipalName=MyPrincipalName))";
SearchResultCollection results = deSearch.FindAll():
foreach (SearchResult result in results)
{
ResultPropertyCollection props = result.Properties;
foreach (string propName in props.PropertyNames)
{
//Loop properties and pick out company,department
string tmp = (string)props[propName][0];
}
}
