private void SubmitUserAnswer(BusinessModel.UserAnswerOptionDetail aSelectedAnswerOption)
{
int _hasAnsweredCorrectly;
if (aSelectedAnswerOption.IsCorrect)
{
_hasAnsweredCorrectly = 1;
}
else
{
_hasAnsweredCorrectly = 0;
}
List <string> _queriesToExecute = new List <string> ();
_queriesToExecute.Add(string.Format(
"UPDATE tblUserAnswerOption SET IsSelected=1 WHERE pkUserAnswerOptionID={0}",
aSelectedAnswerOption.UserAnswerOptionID));
_queriesToExecute.Add(string.Format(
"UPDATE tblUserAnswerOption SET IsSelected=0 " +
"WHERE pkUserAnswerOptionID!={0} AND fkUserQuestionID={1}",
aSelectedAnswerOption.UserAnswerOptionID, aSelectedAnswerOption.UserQuestionID));
_queriesToExecute.Add(string.Format(
"UPDATE tblUserQuestion SET HasAnswered=1, HasAnsweredCorrectly={0}, AnsweredDateTime='{1}', DoSync=1 " +
"WHERE pkUserQuestionID={2}", _hasAnsweredCorrectly, DateTime.UtcNow, aSelectedAnswerOption.UserQuestionID));
BusinessModel.SQL.Execute(_queriesToExecute);
//Update the userquestion session too
AppSession.SelectedExamUserQuestionList = BusinessModel.UserQuestion.GetUserQuestionsBySQL(string.Format(
"SELECT * FROM tblUserQuestion " +
"WHERE fkUserExamID={0} ORDER BY Sequence", AppSession.SelectedUserExam.UserExamID));
}
public override void RowSelected(UITableView tableView, NSIndexPath indexPath)
{
// NOTE: Don't call the base implementation on a Model class
// see http://docs.xamarin.com/ios/tutorials/Events%2c_Protocols_and_Delegates
if (m_showQuestionAnswer)
{
//We dont allow any selection when we already display the answer
tableView.DeselectRow(indexPath, false);
}
else
{
if (indexPath.Section == (int)UnsubmittedQuestionViewSections.QuestionAnswerOptions)
{
//Update the source global variable so we can pull the answer data later on
BusinessModel.UserAnswerOptionDetail _selectedAnswerOptionObj = null;
for (int i = 0; i < m_questionAnswerOptions.Count; i++)
{
BusinessModel.UserAnswerOptionDetail _answerOptionObj = m_questionAnswerOptions [i];
if (i == indexPath.Row)
{
_answerOptionObj.IsSelected = true;
_selectedAnswerOptionObj = _answerOptionObj;
}
else
{
UITableViewCell _cellAtRow = tableView.CellAt(NSIndexPath.FromRowSection(i, (int)UnsubmittedQuestionViewSections.QuestionAnswerOptions));
if (_cellAtRow != null)
{
_cellAtRow.Selected = false;
}
_answerOptionObj.IsSelected = false;
}
}
if (AppSession.SelectedUserExam.IsLearningMode && AppSettings.AutoSubmitResponse)
{
SubmitUserAnswer(_selectedAnswerOptionObj);
//For learning mode, we update the interface to show the answer
m_currentViewController.ReloadCurrentQuestion();
}
else if (!AppSession.SelectedUserExam.IsLearningMode && AppSettings.AutoAdvanceQuestion)
{
SubmitUserAnswer(_selectedAnswerOptionObj);
//For examination mode, we go to the next answer
if (m_currentViewController.CurrentQuestionToDisplayIndex < m_currentViewController.TotalQuestionInExam - 1)
{
m_currentViewController.GoToNextQuestion();
}
else
{
m_currentViewController.NavigationController.PopViewControllerAnimated(true);
}
}
}
else
{
tableView.DeselectRow(indexPath, false);
}
}
}
private void btnSubmitQuestionAnswer_Click(object sender, EventArgs e)
{
BusinessModel.UserAnswerOption _previousSelectedAnswer = BusinessModel.UserAnswerOption.GetFirstUserAnswerOptionBySQL(string.Format(
"SELECT * FROM tblUserAnswerOption WHERE fkUserQuestionID={0} AND IsSelected=1", m_userQuestion.UserQuestionID));
BusinessModel.UserAnswerOptionDetail _selectedAnswerOption =
(from x in m_questionAnswerOptions where x.IsSelected select x).FirstOrDefault();
if (_selectedAnswerOption == null)
{
UIAlertView _requiredFieldAlert = new UIAlertView("Selection Required", "Please select an answer before continuing", null, "Ok", null);
_requiredFieldAlert.Show();
return;
}
if (_previousSelectedAnswer == null || _selectedAnswerOption.UserAnswerOptionID == _previousSelectedAnswer.UserAnswerOptionID)
{
SubmitUserAnswer(_selectedAnswerOption);
if (AppSession.SelectedUserExam.IsLearningMode)
{
//For learning mode, we update the interface to show the answer
m_currentViewController.ReloadCurrentQuestion();
}
else
{
//For examination mode, we go to the next answer
if (m_currentViewController.CurrentQuestionToDisplayIndex < m_currentViewController.TotalQuestionInExam - 1)
{
m_currentViewController.GoToNextQuestion();
}
else
{
m_currentViewController.NavigationController.PopViewControllerAnimated(true);
}
}
}
else
{
//The submit button should only shown in learning mode if the user has not answered, so we only need to code the examination mode to advance to next question
//For examination mode, we go to the next answer
if (AppSession.SelectedUserExam.IsLearningMode)
{
throw new Exception("There should not be any submit button in learning mode when question has been answered");
}
else
{
if (m_currentViewController.CurrentQuestionToDisplayIndex < m_currentViewController.TotalQuestionInExam - 1)
{
m_currentViewController.GoToNextQuestion();
}
else
{
m_currentViewController.NavigationController.PopViewControllerAnimated(true);
}
}
}
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
UITableViewCell cell;
if (m_showQuestionAnswer)
{
switch (indexPath.Section)
{
case (int)SubmittedQuestionViewSections.QuestionStemAndImages:
//cell.BackgroundView = new UIView (RectangleF.Empty); // The question stem/images will not have separators
//cell.Layer.BorderWidth=0;
if (indexPath.Row == 0)
{
cell = tableView.DequeueReusableCell("cell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "cell");
}
cell.TextLabel.Font = UIFont.SystemFontOfSize(14);
cell.TextLabel.Text = m_question.Stem;
cell.TextLabel.Lines = 0;
cell.TextLabel.LineBreakMode = UILineBreakMode.WordWrap;
}
else if (indexPath.Row == m_questionImages.Count + 1)
{
cell = tableView.DequeueReusableCell("cell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "cell");
}
cell.TextLabel.Font = UIFont.SystemFontOfSize(14);
cell.TextLabel.Text = m_question.LeadIn;
cell.TextLabel.Lines = 0;
cell.TextLabel.LineBreakMode = UILineBreakMode.WordWrap;
}
else
{
cell = tableView.DequeueReusableCell("imageCell");
if (cell == null)
{
cell = new CustomImageCell("imageCell");
}
UIImage _imageAtRow = UIImage.FromFile(m_questionImages [indexPath.Row - 1].FilePath);
cell.ImageView.Image = _imageAtRow;
cell.ImageView.GestureRecognizers = new UIGestureRecognizer[] { };
if (_imageAtRow != null)
{
cell.ImageView.UserInteractionEnabled = true;
UITapGestureRecognizer _tapGesture = new UITapGestureRecognizer();
_tapGesture.AddTarget(() => {
HandleImageTapGesture(_tapGesture, m_questionImages [indexPath.Row - 1].ImageID);
});
cell.ImageView.AddGestureRecognizer(_tapGesture);
}
}
break;
case (int)SubmittedQuestionViewSections.QuestionAnswerOptions:
cell = tableView.DequeueReusableCell("answerOptionCell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "answerOptionCell");
}
BusinessModel.UserAnswerOptionDetail _answerOption = m_questionAnswerOptions [indexPath.Row];
cell.TextLabel.Font = UIFont.SystemFontOfSize(14);
cell.TextLabel.Text = (Char)(Convert.ToInt32('A') + _answerOption.Sequence) + ". " + _answerOption.AnswerOptionText;
cell.TextLabel.Lines = 0;
cell.TextLabel.LineBreakMode = UILineBreakMode.WordWrap;
if (_answerOption.IsCorrect)
{
cell.BackgroundColor = UIColor.Green;
}
else
{
if (_answerOption.IsSelected)
{
cell.BackgroundColor = UIColor.Red;
}
else
{
cell.BackgroundColor = UIColor.White;
}
}
break;
case (int)SubmittedQuestionViewSections.QuestionCommentary:
cell = tableView.DequeueReusableCell("cell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "cell");
}
cell.TextLabel.Font = UIFont.SystemFontOfSize(14);
cell.TextLabel.Text = m_question.Commentary;
cell.TextLabel.Lines = 0;
cell.TextLabel.LineBreakMode = UILineBreakMode.WordWrap;
break;
case (int)SubmittedQuestionViewSections.QuestionReferences:
cell = tableView.DequeueReusableCell("cell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "cell");
}
cell.TextLabel.Font = UIFont.SystemFontOfSize(14);
cell.TextLabel.Text = m_question.Reference;
cell.TextLabel.Lines = 0;
cell.TextLabel.LineBreakMode = UILineBreakMode.WordWrap;
break;
default:
cell = tableView.DequeueReusableCell("cell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "cell");
}
break;
}
}
else
{
switch (indexPath.Section)
{
case (int)UnsubmittedQuestionViewSections.QuestionStemAndImages:
//cell.BackgroundView = new UIView (RectangleF.Empty); // The question stem/images will not have separators
//cell.Layer.BorderWidth=0;
if (indexPath.Row == 0)
{
cell = tableView.DequeueReusableCell("cell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "cell");
}
cell.TextLabel.Font = UIFont.SystemFontOfSize(14);
cell.TextLabel.Text = m_question.Stem.Replace("<br />", "\n");
cell.TextLabel.Lines = 0;
cell.TextLabel.LineBreakMode = UILineBreakMode.WordWrap;
}
else if (indexPath.Row == m_questionImages.Count + 1)
{
cell = tableView.DequeueReusableCell("cell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "cell");
}
cell.TextLabel.Font = UIFont.SystemFontOfSize(14);
cell.TextLabel.Text = m_question.LeadIn;
cell.TextLabel.Lines = 0;
cell.TextLabel.LineBreakMode = UILineBreakMode.WordWrap;
}
else
{
cell = tableView.DequeueReusableCell("imageCell");
if (cell == null)
{
cell = new CustomImageCell("imageCell");
}
UIImage _imageAtRow = UIImage.FromFile(m_questionImages [indexPath.Row - 1].FilePath);
cell.ImageView.Image = _imageAtRow;
cell.ImageView.GestureRecognizers = new UIGestureRecognizer[] { };
if (_imageAtRow != null)
{
cell.ImageView.UserInteractionEnabled = true;
UITapGestureRecognizer _tapGesture = new UITapGestureRecognizer();
_tapGesture.AddTarget(() => {
HandleImageTapGesture(_tapGesture, m_questionImages [indexPath.Row - 1].ImageID);
});
cell.ImageView.AddGestureRecognizer(_tapGesture);
}
}
break;
case (int)UnsubmittedQuestionViewSections.QuestionAnswerOptions:
cell = tableView.DequeueReusableCell("answerOptionCell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "answerOptionCell");
}
BusinessModel.UserAnswerOptionDetail _answerOption = m_questionAnswerOptions [indexPath.Row];
cell.TextLabel.Font = UIFont.SystemFontOfSize(14);
cell.TextLabel.Text = (Char)(Convert.ToInt32('A') + _answerOption.Sequence) + ". " + _answerOption.AnswerOptionText;
cell.TextLabel.Lines = 0;
cell.TextLabel.LineBreakMode = UILineBreakMode.WordWrap;
break;
case (int)UnsubmittedQuestionViewSections.SubmitAnswerButton:
cell = tableView.DequeueReusableCell("buttonCell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "buttonCell");
}
btnSubmitQuestionAnswer = new UIButton(UIButtonType.RoundedRect);
btnSubmitQuestionAnswer.AutoresizingMask = UIViewAutoresizing.FlexibleWidth;
btnSubmitQuestionAnswer.Frame = new System.Drawing.RectangleF(0, 0, cell.ContentView.Frame.Width, 36);
btnSubmitQuestionAnswer.SetTitle("Submit", UIControlState.Normal);
btnSubmitQuestionAnswer.TouchUpInside += btnSubmitQuestionAnswer_Click;
foreach (UIView _subview in cell.ContentView.Subviews)
{
_subview.RemoveFromSuperview();
}
cell.ContentView.AddSubview(btnSubmitQuestionAnswer);
break;
default:
cell = tableView.DequeueReusableCell("cell");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Default, "cell");
}
break;
}
}
return(cell);
}
