/// <summary>
        /// Creates any entity records that this sample requires.
        /// </summary>
        public void CreateRequiredRecords()
        {
            // For this sample, all required entities are created in the Run() method.
            // Obtain the current user's information.
            WhoAmIRequest  who           = new WhoAmIRequest();
            WhoAmIResponse whoResp       = (WhoAmIResponse)_serviceProxy.Execute(who);
            Guid           currentUserId = whoResp.UserId;

            SystemUser currentUser =
                _serviceProxy.Retrieve(SystemUser.EntityLogicalName,
                                       currentUserId,
                                       new ColumnSet("domainname")).ToEntity <SystemUser>();

            // Extract the domain and create the LDAP object.
            String[] userPath = currentUser.DomainName.Split(new char[] { '\\' });
            if (userPath.Length > 1)
            {
                _domain = userPath[0] + "\\";
            }
            else
            {
                _domain = String.Empty;
            }

            SystemUser existingUser = SystemUserProvider.GetUserIdIfExist(_serviceProxy,
                                                                          _domain, _userName, _firstName, _lastName);

            if (existingUser != null)
            {
                throw new Exception("User already exist!");
            }

            // Set up an Active Directory account in the current domain for this sample.
            String  ldapPath     = String.Empty;
            Boolean accountSetup = SystemUserProvider.CreateADAccount(_userName,
                                                                      _firstName, _lastName, _serviceProxy, ref ldapPath);

            if (accountSetup)
            {
                Console.WriteLine("An AD account created for '{0}, {1}'", _lastName, _firstName);
            }
            else
            {
                Console.WriteLine("AD account already exist for '{0}, {1}'", _lastName, _firstName);
            }
        }