public Question_iPhone(BusinessModel.UserQuestion aUserQuestion) : base("Question_iPhone", null)
{
m_currentQuestionToDisplay =
(from x in AppSession.SelectedExamUserQuestionList
where x.UserQuestionID == aUserQuestion.UserQuestionID select x).FirstOrDefault();
m_currentQuestionToDisplayIndex = AppSession.SelectedExamUserQuestionList.IndexOf(m_currentQuestionToDisplay);
m_totalQuestionInExam = AppSession.SelectedExamUserQuestionList.Count;
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
UITableViewCell cell;
cell = tableView.DequeueReusableCell("cell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "cell");
}
BusinessModel.UserQuestion _userQuestion = AppSession.SelectedExamUserQuestionList [indexPath.Row];
cell.TextLabel.Text = "Question " + _userQuestion.Sequence;
cell.Accessory = UITableViewCellAccessory.DisclosureIndicator;
if (_userQuestion.HasAnswered)
{
if (AppSession.SelectedUserExam.IsSubmitted || AppSession.SelectedUserExam.IsLearningMode)
{
//If exam is submitted or the exam is in learning mode, we show whether the answer is correct or not
if (_userQuestion.HasAnsweredCorrectly)
{
cell.ImageView.Image = UIImage.FromBundle("Images/Icon-Yes.png").Scale(new SizeF(24, 24));
cell.ImageView.ContentMode = UIViewContentMode.ScaleAspectFit;
}
else
{
cell.ImageView.Image = UIImage.FromBundle("Images/Icon-No.png").Scale(new SizeF(24, 24));
cell.ImageView.ContentMode = UIViewContentMode.ScaleAspectFit;
}
}
else
{
//Otherwise, we just show the fact that the question has been answered (by removing the not answered mark)
cell.ImageView.Image = UIImage.FromBundle("Images/Transparent.png").Scale(new SizeF(24, 24));
cell.ImageView.ContentMode = UIViewContentMode.ScaleAspectFit;
}
}
else
{
cell.ImageView.Image = UIImage.FromBundle("Images/Icon-QuestionMark.png").Scale(new SizeF(24, 24));
cell.ImageView.ContentMode = UIViewContentMode.ScaleAspectFit;
}
return(cell);
}
public Question_iPhoneTableSource(BusinessModel.UserQuestion aUserQuestion, Question_iPhone aParentViewControlller)
{
m_currentViewController = aParentViewControlller;
m_userQuestion = aUserQuestion;
m_question = BusinessModel.Question.GetQuestionByQuestionID(aUserQuestion.QuestionID);
m_questionImages = BusinessModel.Image.GetImagesByQuestionID(aUserQuestion.QuestionID);
if (m_questionImages == null)
{
m_questionImages = new List <BusinessModel.Image> ();
}
m_questionImages = (from x in m_questionImages orderby x.Title select x).ToList();
m_questionAnswerOptions = BusinessModel.UserAnswerOptionDetail.GetUserAnswerOptionDetailListByUserQuestionID(aUserQuestion.UserQuestionID);
m_questionAnswerOptions = (from x in m_questionAnswerOptions orderby x.Sequence select x).ToList();
if (AppSession.SelectedUserExam.IsSubmitted || (aUserQuestion.HasAnswered && AppSession.SelectedUserExam.IsLearningMode))
{
m_showQuestionAnswer = true;
}
else
{
m_showQuestionAnswer = false;
}
}
public void ReloadCurrentQuestion()
{
m_currentQuestionToDisplay = AppSession.SelectedExamUserQuestionList [m_currentQuestionToDisplayIndex];
tblvCurrentQuestion.Source = new Question_iPhoneTableSource(AppSession.SelectedExamUserQuestionList[m_currentQuestionToDisplayIndex], this);
tblvCurrentQuestion.ReloadData();
}
private void svQuestionPager_Scrolled(object sender, EventArgs e)
{
int _scrollViewDisplayIndex = (int)Math.Floor((svQuestionPager.ContentOffset.X + svQuestionPager.Frame.Width / 2) / svQuestionPager.Frame.Width);
if (_scrollViewDisplayIndex == m_currentQuestionToDisplayIndex)
{
return;
}
if (_scrollViewDisplayIndex == m_currentQuestionToDisplayIndex + 1)
{
//Set the next question as current one and load the next one
//-----------------------------------------------------
//Remove the previous question tableview from scrollview to save memory
if (tblvPreviousQuestion != null)
{
tblvPreviousQuestion.RemoveFromSuperview();
}
tblvPreviousQuestion = tblvCurrentQuestion; //The current question becomes the previous one
tblvCurrentQuestion = tblvNextQuestion; //The next question becomes the current one
m_currentQuestionToDisplayIndex++;
m_currentQuestionToDisplay = AppSession.SelectedExamUserQuestionList [m_currentQuestionToDisplayIndex];
if (m_currentQuestionToDisplayIndex < m_totalQuestionInExam - 1)
{
//Load the question to populate to the next question tableview
RectangleF _nextQuestionFrame = svQuestionPager.Frame;
PointF _nextQuestionLocation = new PointF();
_nextQuestionLocation.X = svQuestionPager.Frame.Width * (m_currentQuestionToDisplayIndex + 1);
_nextQuestionFrame.Location = _nextQuestionLocation;
tblvNextQuestion = new UITableView(_nextQuestionFrame, UITableViewStyle.Grouped);
tblvNextQuestion.Source = new Question_iPhoneTableSource(AppSession.SelectedExamUserQuestionList[m_currentQuestionToDisplayIndex + 1], this);
svQuestionPager.AddSubview(tblvNextQuestion);
}
else
{
//We are at the last question in exam, there are no next question available
tblvNextQuestion = null;
}
}
else if (_scrollViewDisplayIndex == m_currentQuestionToDisplayIndex - 1)
{
//Set the previous question as current one and load the previous one
//-----------------------------------------------------
//Remove the next question tableview from scrollview to save memory
if (tblvNextQuestion != null)
{
tblvNextQuestion.RemoveFromSuperview();
}
tblvNextQuestion = tblvCurrentQuestion; //The current question becomes the next question
tblvCurrentQuestion = tblvPreviousQuestion; //The previous question becomes the current one
m_currentQuestionToDisplayIndex--;
m_currentQuestionToDisplay = AppSession.SelectedExamUserQuestionList [m_currentQuestionToDisplayIndex];
if (m_currentQuestionToDisplayIndex > 0)
{
//Load the question to populate to the previous question tableview
RectangleF _previousQuestionFrame = svQuestionPager.Frame;
PointF _previousQuestionLocation = new PointF();
_previousQuestionLocation.X = svQuestionPager.Frame.Width * (m_currentQuestionToDisplayIndex - 1);
_previousQuestionFrame.Location = _previousQuestionLocation;
tblvPreviousQuestion = new UITableView(_previousQuestionFrame, UITableViewStyle.Grouped);
tblvPreviousQuestion.Source = new Question_iPhoneTableSource(AppSession.SelectedExamUserQuestionList[m_currentQuestionToDisplayIndex - 1], this);
svQuestionPager.AddSubview(tblvPreviousQuestion);
}
else
{
//We are at the first question in exam, there are no previous question available
tblvPreviousQuestion = null;
}
}
else
{
throw new Exception("Scroll view index should only return the question before or after the current question");
}
this.Title = string.Format("{0} of {1}", m_currentQuestionToDisplay.Sequence,
m_totalQuestionInExam);
}
public QuestionSelectedEventArgs(BusinessModel.UserQuestion aSelectedQuestion) : base()
{
SelectedQuestion = aSelectedQuestion;
}