private void ReadStudents(byte[] buffer)
{
int index = 0;
int studentsLen = IPAddress.NetworkToHostOrder(GetIntFromMessage(buffer, index));
index += sizeof(int);
if (File.Exists(students_xml))
{
File.Delete(students_xml);
}
FileStream fs = File.Create(students_xml);
fs.Write(buffer, index, studentsLen);
fs.Close();
XMLFileManager.SaveMemberId(students_xml, memberID);
students = XMLFileManager.GetStudentList(students_xml);
parentForm.Invoke(new FillStudentResultsEventHandler(parentForm.FillStudentResults), new Object[] { students });
if (studentID != -1)
{
Student.StudentUpdate stUpd = new Student.StudentUpdate();
stUpd.student = Student.GetStudentById(students, studentID);
parentForm.Invoke(new UpdateStudentEventHandler(parentForm.UpdateStudentInfo), new Object[] { stUpd.student });
}
}
private void ReadStudentInfo(byte[] buffer)
{
int index = 0;
if (studentID == -1)
{
studentID = GetIntFromMessage(buffer, index);
}
else
{
newStudentID = GetIntFromMessage(buffer, index);
}
index += sizeof(int);
GetIntFromMessage(buffer, index);
Student.StudentUpdate stUpd = new Student.StudentUpdate();
stUpd.student = Student.GetStudentById(students, studentID);
if (newStudentID != -1)
{
stUpd.newStudent = Student.GetStudentById(students, newStudentID);
parentForm.Invoke(new StartTimerHandler(parentForm.StartTimer), new Object[] { stUpd });
studentID = newStudentID;
}
else
{
parentForm.Invoke(new UpdateStudentEventHandler(parentForm.UpdateStudentInfo), new Object[] { stUpd.student });
}
}
public void StartTimer(Student.StudentUpdate stCard)
{
sndPlayer.Play();
SetProgressBarMax(10);
TimerCallback timerDelegate = new TimerCallback(timerTick);
timer = new System.Threading.Timer(timerDelegate, stCard, 0, 1000);
}
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);
index += sizeof(int);
studentID = 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);
parentForm.Invoke(new FillStudentResultsEventHandler(parentForm.FillStudentResults), new Object[] { students });
if (studentID != -1)
{
Student.StudentUpdate stUpd = new Student.StudentUpdate();
stUpd.student = Student.GetStudentById(students, studentID);
parentForm.Invoke(new UpdateStudentEventHandler(parentForm.UpdateStudentInfo), new Object[] { stUpd.student });
}
}
}
private void ReadStudentInfo(byte[] buffer)
{
int index = 0;
if (studentID == -1)
{
studentID = GetIntFromMessage(buffer, index);
}
else
{
newStudentID = GetIntFromMessage(buffer, index);
}
index += sizeof(int);
int cardNumber = GetIntFromMessage(buffer, index);
Student.StudentUpdate stCard = new Student.StudentUpdate();
stCard.student = Student.GetStudentById(students, studentID);
stCard.card = Card.GetCardByNum(cards, cardNumber);
if (newStudentID == -1)
{
Student.GetStudentById(students, studentID).CardNumber = cardNumber;
}
else
{
Student.GetStudentById(students, newStudentID).CardNumber = cardNumber;
stCard.newStudent = Student.GetStudentById(students, newStudentID);
}
if (newStudentID != -1)
{
parentForm.Invoke(new StartTimerHandler(parentForm.StartTimer), new Object[] { stCard });
studentID = newStudentID;
}
else
{
parentForm.Invoke(new UpdateStudentEventHandler(parentForm.UpdateStudentInfo), new Object[] { stCard.student, stCard.card });
}
}
private void UpdateHeader(Student.StudentUpdate stCard)
{
if (timerCount > 0)
{
lblState.Text = "Сохр. баллов через: " + timerCount.ToString() + " сек!";
UpdateProgressBar(10 - timerCount);
timerCount--;
}
else
{
timer.Dispose();
lblState.Text = "Сохр. баллов!";
UpdateProgressBar(10);
timerCount = 10;
SaveStudent(stCard.student);
UpdateStudentInfo(stCard.newStudent, stCard.card);
}
}
private void timerTick(Object state)
{
Student.StudentUpdate stCard = (Student.StudentUpdate)state;
this.Invoke(new UpdateHeaderHandler(this.UpdateHeader), new Object[] { stCard });
}
