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POC# System.DirectoryServices.AccountManagement Unknown error (0x80005000) UserPrincipal.IsMemberOf()
 

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  1. POC# System.DirectoryServices.AccountManagement Unknown error (0x80005000) UserPrincipal.IsMemberOf()
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    <p>Similar to the problem in the following MSDN thread: <a href="http://social.msdn.microsoft.com/Forums/en-MY/csharplanguage/thread/4c9fea6c-1d0a-4733-a8ac-e3b78d10e999" rel="nofollow">http://social.msdn.microsoft.com/Forums/en-MY/csharplanguage/thread/4c9fea6c-1d0a-4733-a8ac-e3b78d10e999</a></p> <p>I am trying to verify whether or not a given user is a member of a group, and our existing functional solutions are too slow (13-16 seconds) and I'm trying to speed it up. I currently have:</p> <pre><code>public bool IsMemberAD(string userName, string groupName) { var pc = new System.DirectoryServices.AccountManagement.PrincipalContext(System.DirectoryServices.AccountManagement.ContextType.Domain); var user = System.DirectoryServices.AccountManagement.UserPrincipal.FindByIdentity(pc, System.DirectoryServices.AccountManagement.IdentityType.SamAccountName, userName.ToLower()); var group = System.DirectoryServices.AccountManagement.GroupPrincipal.FindByIdentity(pc, groupName); if (group == null || user == null) return false; return user.IsMemberOf(group); } </code></pre> <p>What makes this interesting is that it only returns an error when the user is not in the group directly, but rather a member of a group that is within the target group.</p> <p>For example:</p> <p>Steve and Sam are two users, and GroupParent and GroupChild are two groups. Steve and GroupChild are members of GroupParent. Sam is a member of GroupChild. If I call this function on (Steve, GroupParent), it returns true. If I call it on (Sam, GroupParent), I get an error. If I call it on ("fdkjskghkf", GroupParent) it returns false.</p> <p>I linked an article above with similar issues, but his solution did not work for me, I still got the same error. Ideas?</p>
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