protected void GetPrevQuestion()
{
navigator.GetPreviousQuestion(questionAnswerSet);
question = questionAnswerSet.Questions[0];
//navigator.SetActiveQuestion(question.Id);
answersRow = question.GetAnswersRows();
}
private void GetRandomQuestion(QuestionAnswerSet questionAnswers)
{
QuestionAnswerSet.QuestionsDataTable qt = questionsAnswers[activeSetIndex, activeZoneIndex].Questions;
QuestionAnswerSet.QuestionsRow[] rows =
(QuestionAnswerSet.QuestionsRow[])qt.Select("DifficultyLevelId = " + activeDifficultyLevel.ToString());
if (rows.Length == 0)
{
throw new Exception(
String.Format(
"The content of the test is incorrent. There is not enough questions of difficulty {0} in zone {1} of question set {2}",
activeDifficultyLevel, activeZoneIndex + 1, activeSetIndex + 1));
}
questionAnswers.Clear();
activeQuestion.Clear();
QuestionAnswerSet.QuestionsRow q = rows[random.Next(rows.Length)];
DataRow[] dr = new DataRow[] { q };
QuestionAnswerSet.AnswersRow[] ar = q.GetAnswersRows();
activeQuestion.Merge(dr);
activeQuestion.Merge(ar);
questionAnswers.Merge(dr);
questionAnswers.Merge(ar);
qt.RemoveQuestionsRow(q);
}
public override void DoGetActiveQuestion(QuestionAnswerSet questionAnswerSet)
{
questionAnswerSet.Clear();
QuestionAnswerSet.QuestionsRow qr =
questionsAnswers[activeSetIndex].Questions[activeQuestionIndexes[activeSetIndex]];
questionAnswerSet.Merge(new DataRow[] { qr });
questionAnswerSet.Merge(qr.GetAnswersRows());
}
protected void GetNextQuestion()
{
if (!navigator.HasNextQuestion)
{
throw new ApplicationException("No next question");
}
navigator.GetNextQuestion(questionAnswerSet);
question = questionAnswerSet.Questions[0];
answersRow = question.GetAnswersRows();
}
private void CheckNavigator(INavigator navigator)
{
QuestionSetSet.QuestionSetsRow qs;
QuestionAnswerSet qd = new QuestionAnswerSet();
while (navigator.HasNextSet)
{
if (navigator.HasPreviousSet && random.Next(3) == 1)
{
qs = navigator.GetPreviousSet();
}
else
{
qs = navigator.GetNextSet();
}
while (navigator.HasNextQuestion)
{
if (navigator.HasPreviousQuestion && random.Next(3) == 1)
{
navigator.GetPreviousQuestion(qd);
}
else
{
navigator.GetNextQuestion(qd);
}
QuestionAnswerSet.QuestionsRow q = qd.Questions[0];
if (q.SubtypeId == (byte)Question.Subtype.ReadingComprehensionPassage)
{
Assert.Fail("Set cannot directly contain question of type ReadingComprehensionPassage");
}
if (q.SubtypeId == (byte)Question.Subtype.ReadingComprehensionQuestionToPassage)
{
navigator.GetPasssageToQuestion(q.Id);
}
QuestionAnswerSet.AnswersRow[] a = q.GetAnswersRows();
navigator.SetUserAnswer(a[random.Next(a.Length)].Id);
}
}
navigator.CommitResult();
}
public ImageSet Render(QuestionAnswerSet.QuestionsRow question)
{
ImageSet s = new ImageSet();
InitBuffer(question.SubtypeId != (int)BuisinessObjects.Subtype.ReadingComprehensionQuestionToPassage
? largeBuffer
: smallBuffer);
//Render question's picture
Image picture = question.IsPictureNull() ? null : Image.FromStream(new MemoryStream(question.Picture));
if (picture != null)
{
activeGraphics.DrawImageUnscaled(picture, (activeBuffer.Width - picture.Width) / 2, 0);
cursor.Y = picture.Height + 12;
}
RenderText(question.Text);
cursor.Y += 10;
activeGraphics.DrawLine(pen, 0, cursor.Y, activeBuffer.Width, cursor.Y);
++cursor.Y;
s.question = CreateImageFromActiveBuffer();
QuestionAnswerSet.AnswersRow[] ar = question.GetAnswersRows();
s.answers = new Bitmap[ar.Length];
int i = 0;
foreach (QuestionAnswerSet.AnswersRow row in ar)
{
InitBuffer(question.SubtypeId != (int)BuisinessObjects.Subtype.ReadingComprehensionQuestionToPassage
? largeBufferA
: smallBufferA);
RenderText(row.Text);
s.answers[i] = CreateImageFromActiveBuffer();
++i;
}
return(s);
}
public void Render()
{
string fileName = "c:\\test.gif";
File.Exists(fileName);
File.Delete(fileName);
QuestionAnswerSet q = new QuestionAnswerSet();
Bitmap bitmap = new Bitmap(50, 50, PixelFormat.Format16bppRgb555);
for (int i = 0; i < 50; ++i)
{
bitmap.SetPixel(i, i, Color.Red);
}
MemoryStream stream = new MemoryStream();
bitmap.Save(stream, ImageFormat.Gif);
byte[] picture = stream.GetBuffer();
QuestionAnswerSet.QuestionsRow row =
q.Questions.AddQuestionsRow((byte)Question.Type.Quantitative, (byte)Question.Subtype.DataSufficiency,
0, text, picture);
ImageSet set = renderer.Render(row);
//set.Question.Save(fileName, ImageFormat.Gif);
int j = 0;
foreach (Image image in set.Answers)
{
image.Save(fileName + j.ToString(), ImageFormat.Gif);
++j;
}
}
private void GetNextQuestion()
{
navigator.GetNextQuestion(questionAnswerSet);
question = questionAnswerSet.Questions[0];
answersRow = question.GetAnswersRows();
}
public void GetActivQuestion()
{
navigator.GetActiveQuestion(questionAnswerSet);
question = questionAnswerSet.Questions[0];
answersRow = question.GetAnswersRows();
}
private void _setUserAnswer(int answerId)
{
CheckTime();
QuestionAnswerSet.QuestionsRow q = ActiveQuestion;
ResultResultDetailSet.ResultsDetailsRow row =
result.ResultsDetails.FindByResultIdQuestionId(result.Results[0].Id, q.Id);
bool isCorrect = false;
foreach (QuestionAnswerSet.AnswersRow r in q.GetAnswersRows())
{
if (r.Id == answerId)
{
isCorrect = r.IsCorrect;
break;
}
}
double scoreForCorrect = CalculateScoreOfActiveQuestion(true);
double score = CalculateScoreOfActiveQuestion(isCorrect);
ResultResultDetailSet.ResultsDetailsOfSetsRow setRow =
result.ResultsDetailsOfSets.FindByResultIdQuestionSetId(resultRow.Id,
sets.QuestionSets[activeSetIndex].Id);
if (row != null)
{
row.AnswerId = answerId;
QuestionIdentity qi = new QuestionIdentity(setRow.QuestionSetId, q.Id);
if (isCorrect)
{
if (((Question.Status)questionStatus[q.Id]).status != BuisinessObjects.StatusType.ANSWER_IS_CORRECT)
{
setRow.Score += score;
}
QuestionInfoForReview.incorrect.Remove(qi);
}
else
{
if (((Question.Status)questionStatus[q.Id]).status == BuisinessObjects.StatusType.ANSWER_IS_CORRECT)
{
setRow.Score -= scoreForCorrect;
}
if (!QuestionInfoForReview.incorrect.Contains(qi))
{
QuestionInfoForReview.incorrect.Add(qi);
}
}
}
else
{
result.ResultsDetails.AddResultsDetailsRow(
resultRow,
q.Id,
answerId,
(byte)(ActiveQuestionIndex + 1),
questionStartTime,
DateTime.Now);
questionStartTime = DateTime.Now;
setRow.Score += score;
}
((Question.Status)questionStatus[q.Id]).status = isCorrect
? BuisinessObjects.StatusType.ANSWER_IS_CORRECT
: BuisinessObjects.StatusType.ANSWER_IS_INCORRECT;
((Question.Status)questionStatus[q.Id]).answeredId = answerId;
((Question.Status)questionStatus[q.Id]).score = score;
}
