Find Domin User Information


System.DirectoryServices class will help finding the information of a Domain User.


Function which will help retriving Active Directory Object:


       private DirectoryEntry GetActiveDirectoryObject(string filter, string domain, string[] properties)
        {


            /// Running LADAP query to get the directory entry
            DirectoryEntry adsRoot = new DirectoryEntry("LDAP://" + domain, null, null, AuthenticationTypes.Secure);


            DirectorySearcher searcher = new DirectorySearcher(adsRoot);
            searcher.SearchScope = SearchScope.Subtree;
            searcher.ReferralChasing = ReferralChasingOption.All;
            searcher.PropertiesToLoad.AddRange(properties);
            searcher.Filter = filter;


            SearchResult result = searcher.FindOne();
            DirectoryEntry directoryEntry = result.GetDirectoryEntry();


            return directoryEntry;
        }


        Parameters one has to pass to GetActiveDirectoryObject funtion:


string filter = string.Format("(&(ObjectClass={0})(sAMAccountName={1}))","person", username);


string domain = Current User's Domain


string[] properties = One can pass string array of properties, for Example: string[] properties = new string[] { "memberOf" };


Retriving data from the DirectoryEntry object:


      DirectoryEntry directoryEntry = GetActiveDirectoryObject(filter, domain, properties);
      if (directoryEntry != null)
      {
                    directoryEntry.AuthenticationType = AuthenticationTypes.None;
                    string displayName = directoryEntry.Properties["displayName"][0].ToString();
                    string firstName = directoryEntry.Properties["givenName"][0].ToString();
                    string lastName = directoryEntry.Properties["sn"][0].ToString();
                    string email = directoryEntry.Properties["mail"][0].ToString();
       }


I have also attached the sample code. For more information on the System.DirectoryServices please refere MSDN, it has detailed description about it.


 Cheers!!!!

DomainUsreInfo.zip

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