//method: SaveButton_Click
//description: SaveButton click event
//params: object sender - sender
// EventArgs e - event args
//returns: void
private void SaveButton_Click(object sender, EventArgs e)
{
SaveButton.Enabled = false;
EditButton.Enabled = true;
if (questionNum != 10) {
NextButton.Enabled = true;
}
if (questionNum != 1) {
PreviousButton.Enabled = true;
}
QuestionTextbox.Enabled = false;
TextboxA.Enabled = false;
TextboxB.Enabled = false;
TextboxC.Enabled = false;
TextboxD.Enabled = false;
AnswerGroupbox.Enabled = false;
//Get A
answerA = new Answer();
answerA.answerText = TextboxA.Text;
answerA.isCorrect = RadioButtonA.Checked;
//Get B
answerB = new Answer();
answerB.answerText = TextboxB.Text;
answerB.isCorrect = RadioButtonB.Checked;
//Get C
answerC = new Answer();
answerC.answerText = TextboxC.Text;
answerC.isCorrect = RadioButtonC.Checked;
//Get D
answerD = new Answer();
answerD.answerText = TextboxD.Text;
answerD.isCorrect = RadioButtonD.Checked;
//create question
question = new Question();
question.answers = new List<Answer>();
question.questionNumber = questionNum;
question.questionText = QuestionTextbox.Text;
question.answers.Add(answerA);
question.answers.Add(answerB);
question.answers.Add(answerC);
question.answers.Add(answerD);
oldQuestion = new Question();
oldQuestion.answers = new List<Answer>();
oldQuestion.answers.Add(oldAnswerA);
oldQuestion.answers.Add(oldAnswerB);
oldQuestion.answers.Add(oldAnswerC);
oldQuestion.answers.Add(oldAnswerD);
connection.AddOrModifyQuestion(question, oldQuestion);
}
//method: GetQuestion
//description: retrieves question information from the database
//params: int questionNumber - questionNumber
//returns: void
public void GetQuestion(int questionNumber)
{
if(stopped) return;
Task.Factory.StartNew(() => {
try {
lock (socketLock) {
//tell service to get questions
writer.WriteLine("GET_QUESTION");
writer.WriteLine("" + questionNumber);
writer.Flush();
Question question = new Question();
question.questionNumber = questionNumber;
//get question
string input = reader.ReadLine();
if (input.StartsWith("QUESTION:")) {
question.questionText = input.Substring("QUESTION:".Length);
//get question answers
question.answers = new List<Answer>();
while (reader.PeekLine().StartsWith("ANSWER:")) {
Answer a = new Answer();
a.answerText = reader.ReadLine().Substring("ANSWER:".Length);
if (reader.PeekLine().StartsWith("ISCORRECT:")){
a.isCorrect = Convert.ToBoolean(reader.ReadLine().Substring("ISCORRECT:".Length));
question.answers.Add(a);
}
}
string writerDump = reader.ReadLine(); //dump for "DONE" string from server
owner.Invoke((MethodInvoker)(
() => { QuestionReceived(this, question); }
));
}
}
} catch(Exception) {
stopped = true;
socket.Close();
owner.Invoke((MethodInvoker)(() => { ConnectionLost(this, new EventArgs()); }));
}
});
}
//method: EditButton_Click
//description: EditButton click event
//params: object sender - sender
// EventArgs e - event args
//returns: void
private void EditButton_Click(object sender, EventArgs e)
{
SaveButton.Enabled = true;
EditButton.Enabled = false;
NextButton.Enabled = false;
PreviousButton.Enabled = false;
oldAnswerA = new Answer();
oldAnswerA.answerText = TextboxA.Text;
oldAnswerB = new Answer();
oldAnswerB.answerText = TextboxB.Text;
oldAnswerC = new Answer();
oldAnswerC.answerText = TextboxC.Text;
oldAnswerD = new Answer();
oldAnswerD.answerText = TextboxD.Text;
QuestionTextbox.Enabled = true;
TextboxA.Enabled = true;
TextboxB.Enabled = true;
TextboxC.Enabled = true;
TextboxD.Enabled = true;
AnswerGroupbox.Enabled = true;
}
