private void cmdLoadQuestionnaire_Click(object sender, EventArgs e)
{
fLoadQuestionnaire loadForm = new fLoadQuestionnaire(Teacher);
loadForm.ShowDialog();
if (loadForm.ValidatedData)
{
QuestionnaireSession = loadForm.QuestionnaireSession;
ShowQuestionnaireData();
}
}
private void cmdConfirm_Click(object sender, EventArgs e)
{
if (ValidatedData = dblwQuestionnaireSessions.SelectedItems.Count > 0)
{
QuestionnaireSession = (QuestionnaireSession)dblwQuestionnaireSessions.SelectedItems[0].Tag;
Close();
}
else
{
MessageBox.Show("Seleziona un questionario precedente prima di procedere.", "Errore", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public fCurrentQuestionnaireSession(QuestionnaireSession qSession, Teacher teacher)
{
InitializeComponent();
ControlsUtilities.ApplyAppIcon(this);
Text += teacher.FullName;
ElapsedTime = TimeSpan.FromSeconds(0);
QuestionnaireSession = qSession;
Teacher = teacher;
Submissions = new BindingList <QuestionnaireSubmission>();
IsActiveSession = true;
dgwSubmissions.DataSource = Submissions;
Watcher = new FileSystemWatcher();
Watcher.SynchronizingObject = this;
Watcher.Path = Path.Combine(AppConfiguration.questionnaireSessionsFolderPath, QuestionnaireSession.FilesystemDirectoryName);
Watcher.NotifyFilter = NotifyFilters.LastWrite;
Watcher.Filter = "*.*";
Watcher.Changed += new FileSystemEventHandler(FileAddedHandler);
Watcher.EnableRaisingEvents = true;
}
private async Task <bool> TryParseQuestionnaireSessionDataAsync()
{
QuestionnaireOptions options = new QuestionnaireOptions();
options.QuestionsGenerationMethod = (QElementGenerationMethod)cboQuestionsGenerationMethod.SelectedItem;
int answersPerQuestion = 0;
double correctAnswerScore = 0;
double emptyAnswerScore = 0;
double maxmiumGrade = 0;
double minimumGrade = 0;
int questionsNumber = 0;
double wrongAnswerScore = 0;
Topic topic = (Topic)cboTopic.SelectedItem;
Questionnaire questionnaire = new Questionnaire(topic, options);
if (options.QuestionsGenerationMethod != QElementGenerationMethod.RANDOM)
{
if (dblswQuestions.SelectedItems.Count > 0)
{
foreach (ListViewItem item in dblswQuestions.Items)
{
questionnaire.Questions.Add((Question)item.Tag);
}
}
else
{
return(false);
}
}
bool notNull = Helpers.IsValuedString(txtAnswersPerQuestion.Text) &&
Helpers.IsValuedString(txtCorrectAnswerScore.Text) &&
Helpers.IsValuedString(txtEmptyAnswerScore.Text) &&
Helpers.IsValuedString(txtMaximumGrade.Text) &&
Helpers.IsValuedString(txtMinimumGrade.Text) &&
Helpers.IsValuedString(txtQuestionsNumber.Text) &&
Helpers.IsValuedString(txtWrongAnswerScore.Text) &&
Helpers.IsValuedString(lblSessionDescription.Text);
if (notNull)
{
bool validNumbers = int.TryParse(txtAnswersPerQuestion.Text, out answersPerQuestion) &&
double.TryParse(txtCorrectAnswerScore.Text, out correctAnswerScore) &&
double.TryParse(txtEmptyAnswerScore.Text, out emptyAnswerScore) &&
double.TryParse(txtMaximumGrade.Text, out maxmiumGrade) &&
double.TryParse(txtMinimumGrade.Text, out minimumGrade) &&
int.TryParse(txtQuestionsNumber.Text, out questionsNumber) &&
double.TryParse(txtWrongAnswerScore.Text, out wrongAnswerScore);
if (validNumbers)
{
bool validSigns = answersPerQuestion > 0 &&
correctAnswerScore > 0 &&
emptyAnswerScore <= 0 &&
maxmiumGrade >= 0 &&
questionsNumber > 0 &&
wrongAnswerScore < 0;
if (validSigns)
{
List <Student> involvedStudents = await Class.FromData(cboSchoolYear.Text, cboCourse.Text).GetStudentsAsync();
options.MaximumGrade = maxmiumGrade;
options.AnswersPerQuestion = answersPerQuestion;
options.CorrectAnswerScore = correctAnswerScore;
/**/
options.WrongAnswerScore = wrongAnswerScore;
/**/
options.EmptyAnswerScore = emptyAnswerScore;
options.MinimumGrade = minimumGrade;
options.QuestionsNumber = questionsNumber;
bool enoughAnswers = questionnaire.Questions.Where(x => x.Answers.Count < answersPerQuestion).Count() == 0;
bool enoughQuestions = options.QuestionsGenerationMethod != QElementGenerationMethod.RANDOM ? questionnaire.Questions.Count >= options.QuestionsNumber
: (await questionnaire.Topic.GetQuestionsAsync()).Count >= options.QuestionsNumber;
bool enoughStudents = involvedStudents.Count > 0;
bool validConfiguration = enoughAnswers && enoughQuestions && enoughStudents;
if (validConfiguration)
{
QuestionnaireSession = new QuestionnaireSession(questionnaire, involvedStudents, lblSessionDescription.Text);
return(true);
}
}
}
}
return(false);
}
