Get User Info from Active Directory using LDAP




using log4net;

using System.DirectoryServices;

public class ADUserInfo

{

public string ShortName { get; set; }

public string DisplayName { get; set; }

public string Email { get; set; }

}

The following method returns ADUser information:


[Serializable]

[DataObject(true)]

public class ADUtilities

{

private static readonly ILog log = LogManager.GetLogger(typeof(ADUtilities));


///

/// Returns UserInfo Object,

/// Which contains User Display Name,Email Address

///

/// User ShortName

public static List< ADUserInfo> GetCurrentUserInfo(string _userName)

{

if (String.IsNullOrEmpty(_userName))

{

log.Error("UserName is null or Empty for GetCurrentUserInfo[_userName]: " + _userName);

return null;

}

try

{

string ldapqry = ConfigurationManager.AppSettings["ADConnctionstr"].ToString(); //@"LDAP://DC01.eng.stclocal";

string qryFilterFormat = String.Format("(&(objectClass=user)(objectCategory=person)(sAMAccountName={0}))", _userName);

SearchResult result = null;

using (DirectoryEntry root = new DirectoryEntry(ldapqry))

{

using (DirectorySearcher searcher = new DirectorySearcher(root))

{

List< ADUserInfo> userInfo = new List<InfiniaUserInfo>();

ADUserInfo objuser = new InfiniaUserInfo();

searcher.Filter = qryFilterFormat;

SearchResultCollection results = searcher.FindAll();

result = (results.Count != 0) ? results[0] : null;

objuser.ShortName = (string) result.Properties["sAMAccountName"][0];

objuser.DisplayName = (string)result.Properties["displayname"][0];

if(!String.IsNullOrEmpty((string)result.Properties["mail"][0]))

objuser.Email = (string)result.Properties["mail"][0];

//else

//objuser.Email = (string)result.Properties["sAMAccountName"][0];

userInfo.Add(objuser);

return userInfo;

}

}

}

catch (Exception ex)

{

log.Error("Error to getting Email Address for GetCurrentUserEmail [username] : " + _userName + " Error Message: " + ex.Message.ToString());

return null;

}

}

}


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