{"id":37,"date":"2009-02-10T23:16:00","date_gmt":"2009-02-10T22:16:00","guid":{"rendered":"\/post\/2009\/02\/10\/User-Search-in-AD.aspx"},"modified":"2014-02-22T19:05:02","modified_gmt":"2014-02-22T18:05:02","slug":"user-search-in-ad","status":"publish","type":"post","link":"https:\/\/cymbeline.ch\/2009\/02\/10\/user-search-in-ad\/","title":{"rendered":"User Search in AD"},"content":{"rendered":"<p>\nI stumbled upon the System.DirectoryServices.AccountManagement namespace this week. It was introduced with .Net 3.5 and offers functionality to perform queries on AD objects like users, groups and computers in a more comfortable way than through the DirectorySearcher class from the System.DirectoryServices namespace. To illustrate the ease of using these classes, I came up with a tiny example which lists all users whose account name (the samAccountName attribute in AD) starts with an &#39;a&#39;. On top of this, using LINQ it is quite simple to convert the resulting PrincipalSearchResult&lt;Principal&gt; collection into an <em>IEnumerable&lt;UserPrincipal&gt;<\/em>.\n<\/p>\n<pre class=\"brush: csharp; title: Program.cs; notranslate\" title=\"Program.cs\">\r\nusing System;\r\nusing System.Collections.Generic;\r\nusing System.DirectoryServices.AccountManagement;\r\nusing System.Linq;\r\n\r\nnamespace UserSearch\r\n{\r\n    class Program\r\n    {\r\n        static void Main(string[] args)\r\n        {\r\n            PrincipalContext context = new PrincipalContext(ContextType.Domain, &quot;contoso.com&quot;);\r\n\r\n            UserPrincipal searchFilter = new UserPrincipal(context);\r\n            searchFilter.SamAccountName = &quot;a*&quot;;\r\n\r\n            PrincipalSearcher ps = new PrincipalSearcher(searchFilter);\r\n\r\n            IEnumerable&lt;UserPrincipal&gt; results = from principal in ps.FindAll()\r\n                                                 where principal is UserPrincipal\r\n                                                 select principal as UserPrincipal;\r\n\r\n            foreach (UserPrincipal user in results)\r\n            {\r\n                Console.WriteLine(&quot;User '{0}' ({1}) Info:&quot;, user.SamAccountName, user.Name);\r\n                Console.WriteLine(&quot;    Password Set On  {0}&quot;, user.LastPasswordSet);\r\n                Console.WriteLine(&quot;    Last Log On      {0}&quot;, user.LastLogon);\r\n                Console.WriteLine();\r\n            }\r\n        }\r\n    }\r\n}\r\n<\/pre>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>I stumbled upon the System.DirectoryServices.AccountManagement namespace this week. It was introduced with .Net 3.5 and offers functionality to perform queries on AD objects like users, groups and computers in a more comfortable way than through the DirectorySearcher class from the System.DirectoryServices namespace. To illustrate the ease of using these classes, I came up with a &hellip; <a href=\"https:\/\/cymbeline.ch\/2009\/02\/10\/user-search-in-ad\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;User Search in AD&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[61],"tags":[16,37,17,12,26],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.13 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>User Search in AD - Tales of a Code Monkey<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cymbeline.ch\/2009\/02\/10\/user-search-in-ad\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"User Search in AD - Tales of a Code Monkey\" \/>\n<meta property=\"og:description\" content=\"I stumbled upon the System.DirectoryServices.AccountManagement namespace this week. It was introduced with .Net 3.5 and offers functionality to perform queries on AD objects like users, groups and computers in a more comfortable way than through the DirectorySearcher class from the System.DirectoryServices namespace. 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