/// <summary> /// Get the address book contacts by specified address book group. /// </summary> public void GetAddressBookContactsByGroup() { var route4Me = new Route4MeManager(ActualApiKey); CreateAddressBookGroup(); string groupId = addressBookGroupsToRemove[addressBookGroupsToRemove.Count - 1]; var addressBookGroupParameters = new AddressBookGroupParameters() { groupID = groupId, Fields = new string[] { "address_id" } }; // Run the query var response = route4Me .GetAddressBookContactsByGroup( addressBookGroupParameters, out string errorString); Console.WriteLine((response?.results?.Length ?? 0) < 1 ? "Cannot retrieve contacts by group " + groupId + Environment.NewLine + errorString : "Retrieved the contacts by group " + groupId + ": " + response.results.Length ); RemoveAddressBookGroups(); }