private void ReadExamInfo(byte[] buffer) { int index = 0; examID = GetIntFromMessage(buffer, index); index += sizeof(int); memberID = GetIntFromMessage(buffer, index); index += sizeof(int); studentCount = GetIntFromMessage(buffer, index); bool needStudents = false; if (File.Exists(students_xml)) { ExamInfo examInfo = XMLFileManager.GetExamInfo(students_xml); if (examInfo.examId != examID || examInfo.studentCount != studentCount) { needStudents = true; } } else { needStudents = true; } if (needStudents) { List <byte> message = new List <byte>(); message.AddRange(BitConverter.GetBytes(IPAddress.HostToNetworkOrder(AssistantProtocol.OpcodeNeedStudents))); message.AddRange(BitConverter.GetBytes(IPAddress.HostToNetworkOrder(0))); byte[] msg = message.ToArray(); SendMessage(msg); } else { XMLFileManager.SaveMemberId(students_xml, memberID); students = XMLFileManager.GetStudentList(students_xml); } if (!File.Exists(cards_xml)) { List <byte> message = new List <byte>(); message.AddRange(BitConverter.GetBytes(IPAddress.HostToNetworkOrder(AssistantProtocol.OpcodeNeedCards))); message.AddRange(BitConverter.GetBytes(IPAddress.HostToNetworkOrder(0))); byte[] msg = message.ToArray(); SendMessage(msg); } else { cards = XMLFileManager.GetCardList(cards_xml); } }
private void ReadCards(byte[] buffer) { int index = 0; int cardsLen = IPAddress.NetworkToHostOrder(GetIntFromMessage(buffer, index)); index += sizeof(int); if (File.Exists(cards_xml)) { File.Delete(cards_xml); } FileStream fs = File.Create(cards_xml); fs.Write(buffer, index, cardsLen); fs.Close(); cards = XMLFileManager.GetCardList(cards_xml); }