private bool CheckGroupDN(string groupDN, string server, int portNumber, bool authentication, string login, string password, bool startTls) { try { return(_ldapHelper.CheckGroupDN(groupDN, server, portNumber, authentication, login, password, startTls)); } catch (Exception e) { log.ErrorFormat("Wrong User DN parameter: {0}. {1}", groupDN, e); return(false); } }