Пример #1
0
 /// <summary>
 /// Method to read questions from an xml file
 /// </summary>
 /// <param name="xmlFilePath">Fully qualified path to xml file</param>
 /// <returns>A specially formatted dictionary containing the questions in the xml file</returns>
 public static Dictionary<string, List<Question>> ReadExamToFormat(string xmlFilePath)
 {
     XPathDocument doc = new XPathDocument(xmlFilePath);
     XPathNavigator nav = doc.CreateNavigator();
     XmlNamespaceManager nm = new XmlNamespaceManager(nav.NameTable);
     Dictionary<string, List<Question>> formattedQuestionList = new Dictionary<string, List<Question>>();
     XPathExpression expression = nav.Compile("//Section");
     XPathNodeIterator rootIterator = nav.Select(expression);
     while (rootIterator.MoveNext())
     {
         string sectionTitle = rootIterator.Current.GetAttribute("Title", nm.DefaultNamespace);
         List<Question> sectionQuestions = new List<Question>();
         XPathNodeIterator subIterator = rootIterator.Current.SelectChildren(XPathNodeType.Element);
         while (subIterator.MoveNext())
         {
             Question ques = new Question();
             ques.SectionTitle = sectionTitle;
             ques.QuestionNumber = Convert.ToInt32(subIterator.Current.GetAttribute("No", nm.DefaultNamespace));
             Dictionary<char, string> options = new Dictionary<char, string>();
             XPathNodeIterator iter = subIterator.Current.SelectChildren(XPathNodeType.Element);
             while (iter.MoveNext())
             {
                 if (iter.Current.LocalName == "Text")
                 {
                     ques.QuestionText = iter.Current.Value;
                 }
                 else if (iter.Current.LocalName == "Image")
                 {
                     if (string.IsNullOrWhiteSpace(iter.Current.Value))
                     {
                         ques.QuestionImagePath = null;
                     }
                     else
                     {
                         ques.QuestionImagePath = Path.Combine(Path.GetDirectoryName(xmlFilePath), iter.Current.Value);
                     }
                 }
                 else if (iter.Current.LocalName == "Answer")
                 {
                     ques.QuestionAnswer = Convert.ToChar(iter.Current.Value);
                 }
                 if (iter.Current.LocalName == "Options")
                 {
                     XPathNodeIterator ite = iter.Current.SelectChildren(XPathNodeType.Element);
                     while (ite.MoveNext())
                     {
                         char option;
                         string optionText;
                         option = Convert.ToChar(ite.Current.GetAttribute("Title", nm.DefaultNamespace));
                         optionText = ite.Current.Value;
                         options.Add(option, optionText);
                     }
                     ques.QuestionOptions = options;
                 }
             }
             sectionQuestions.Add(ques);
         }
         formattedQuestionList.Add(sectionTitle, sectionQuestions);
     }
     return formattedQuestionList;
 }
Пример #2
0
 private void PushPreviousQuestion(TreeNode questionNode)
 {
     Question queryResult = rawQuestionList.FirstOrDefault(s => s.SectionTitle == questionNode.Parent.Text && s.QuestionNumber == Convert.ToInt32(questionNode.Text.Replace("Question ", "")));
     if (queryResult != null)
     {
         int questionIndex = rawQuestionList.IndexOf(queryResult);
         rawQuestionList[questionIndex].AnswerExplanation = txt_answer_explanation.Text;
         if (pan_options.Controls.Count > 0)
         {
             if ((pan_options.Controls.OfType<OptionControl>().First<OptionControl>(p => p.IsChecked == true)) != null)
             {
                 rawQuestionList[questionIndex].QuestionAnswer = (pan_options.Controls.OfType<OptionControl>().First<OptionControl>(p => p.IsChecked == true)).OptionLetter;
             }
             else
             {
                 rawQuestionList[questionIndex].QuestionAnswer = 'A';
             }
         }
         rawQuestionList[questionIndex].QuestionImagePath = pct_question_picture.ImageLocation;
         rawQuestionList[questionIndex].QuestionNumber = Int32.Parse(questionNode.Text.Replace("Question ", ""));
         Dictionary<char, string> questionOptionList = new Dictionary<char, string>();
         foreach (OptionControl option in (pan_options.Controls.OfType<OptionControl>()))
         {
             questionOptionList.Add(option.OptionLetter, option.OptionText);
         }
         rawQuestionList[questionIndex].QuestionOptions = questionOptionList;
         rawQuestionList[questionIndex].QuestionText = txt_question_text.Text;
         rawQuestionList[questionIndex].SectionTitle = questionNode.Parent.Text;
     }
     else
     {
         Question question = new Question();
         question.AnswerExplanation = txt_answer_explanation.Text;
         if (pan_options.Controls.Count > 0)
         {
             if ((pan_options.Controls.OfType<OptionControl>().First<OptionControl>(p => p.IsChecked == true)) != null)
             {
                 question.QuestionAnswer = (pan_options.Controls.OfType<OptionControl>().First<OptionControl>(p => p.IsChecked == true)).OptionLetter;
             }
             else
             {
                 question.QuestionAnswer = 'A';
             }
         }
         question.QuestionImagePath = pct_question_picture.ImageLocation;
         question.QuestionNumber = Int32.Parse(questionNode.Text.Replace("Question ", ""));
         Dictionary<char, string> questionOptionList = new Dictionary<char, string>();
         foreach (OptionControl option in (pan_options.Controls.OfType<OptionControl>()))
         {
             questionOptionList.Add(option.OptionLetter, option.OptionText);
         }
         question.QuestionOptions = questionOptionList;
         question.QuestionText = txt_question_text.Text;
         question.SectionTitle = questionNode.Parent.Text;
         rawQuestionList.Add(question);
     }
 }
Пример #3
0
        private void Open(string examFilePath)
        {
            CloseExam(null, null);
            New_Exam(null, null);

            CurrentFileNameWithExtension = examFilePath;
            string foldername = Path.GetFileNameWithoutExtension(examFilePath);
            string extractionFolderPath = Path.Combine(GlobalPathVariables.creatorFolderPath, foldername);
            if (Directory.Exists(extractionFolderPath))
            {
                Directory.Delete(extractionFolderPath, true);
                Directory.CreateDirectory(extractionFolderPath);
            }
            else
            {
                Directory.CreateDirectory(extractionFolderPath);
            }
            using (ZipFile zip = new ZipFile(examFilePath))
            {
                zip.ExtractAll(extractionFolderPath, ExtractExistingFileAction.OverwriteSilently);
            }

            string[] temp = Directory.GetFiles(extractionFolderPath, "*.xml", SearchOption.TopDirectoryOnly);
            string xmlFilePath = null;
            if (temp.Length > 0)
                xmlFilePath = temp[0];
            
            if (string.IsNullOrWhiteSpace(xmlFilePath))
            {
                MessageBox.Show("Sorry, the selected exam file is invalid!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            else
            {
                XPathDocument doc = new XPathDocument(xmlFilePath);
                XPathNavigator navigator = doc.CreateNavigator();
                string version = "";
                XPathExpression expression = navigator.Compile("//FileVersion");
                XPathNodeIterator iterator = navigator.Select(expression);
                while (iterator.MoveNext())
                {
                    version = iterator.Current.Value;
                }
                expression = navigator.Compile("//ExamTitle");
                iterator = navigator.Select(expression);
                while (iterator.MoveNext())
                {
                    txt_exam_title.Text = iterator.Current.Value;
                }
                expression = navigator.Compile("//TimeAllowed");
                iterator = navigator.Select(expression);
                while (iterator.MoveNext())
                {
                    num_time_limit.Value = Convert.ToDecimal(iterator.Current.Value);
                }
                expression = navigator.Compile("//PassingScore");
                iterator = navigator.Select(expression);
                while (iterator.MoveNext())
                {
                    num_passing_score.Value = Convert.ToDecimal(iterator.Current.Value);
                }
                expression = navigator.Compile("//ExamCode");
                iterator = navigator.Select(expression);
                while (iterator.MoveNext())
                {
                    txt_exam_code.Text = iterator.Current.Value;
                }
                expression = navigator.Compile("//ExamInstructions");
                iterator = navigator.Select(expression);
                while (iterator.MoveNext())
                {
                    txt_exam_instructions.Text = iterator.Current.Value;
                }
                expression = navigator.Compile("//Section");
                iterator = navigator.Select(expression);
                while (iterator.MoveNext())
                {
                    TreeNode secNode = new TreeNode();
                    secNode.Name = "sectionNode" + (trv_explorer.Nodes[0].Nodes.Count);
                    secNode.Text = iterator.Current.GetAttribute("Title", "");
                    secNode.ImageIndex = 1;
                    secNode.SelectedImageIndex = 1;
                    secNode.ContextMenuStrip = cms_explorer;

                    XPathNodeIterator subIterator = iterator.Current.SelectChildren(XPathNodeType.Element);
                    while (subIterator.MoveNext())
                    {
                        Question question = new Question();
                        question.SectionTitle = iterator.Current.GetAttribute("Title", "");
                        question.QuestionNumber = Convert.ToInt32(subIterator.Current.GetAttribute("No", ""));
                        Dictionary<char, string> options = new Dictionary<char, string>();
                        XPathNodeIterator subIter = subIterator.Current.SelectChildren(XPathNodeType.Element);
                        while (subIter.MoveNext())
                        {
                            if (subIter.Current.LocalName == "Text")
                            {
                                question.QuestionText = subIter.Current.Value;
                            }
                            else if (subIter.Current.LocalName == "Image")
                            {
                                question.QuestionImagePath = subIter.Current.Value;
                            }
                            else if (subIter.Current.LocalName == "Answer")
                            {
                                question.QuestionAnswer = Convert.ToChar(subIter.Current.Value);
                            }
                            if (subIter.Current.LocalName == "Options")
                            {
                                XPathNodeIterator ite = subIter.Current.SelectChildren(XPathNodeType.Element);
                                while (ite.MoveNext())
                                {
                                    char option;
                                    string optionText;
                                    string tempp = ite.Current.GetAttribute("Title", "");
                                    option = Convert.ToChar(tempp);
                                    optionText = ite.Current.Value;
                                    options.Add(option, optionText);
                                }
                                question.QuestionOptions = options;
                            }
                            if (version == "1.0")
                            {
                                question.AnswerExplanation = "Version 1.0 files do not support explanations";
                            }
                            else
                            {
                                if (iterator.Current.LocalName == "AnswerExplanation")
                                    question.AnswerExplanation = iterator.Current.Value;
                            }
                        }
                        rawQuestionList.Add(question);

                        TreeNode quesNode = new TreeNode();
                        quesNode.ImageIndex = 2;
                        quesNode.SelectedImageIndex = 2;
                        quesNode.ContextMenuStrip = cms_explorer;
                        quesNode.Text = "Question " + (secNode.Nodes.Count + 1);
                        quesNode.Name = "questionNode" + secNode.Nodes.Count;
                        secNode.Nodes.Add(quesNode);
                    }
                    trv_explorer.Nodes[0].Nodes.Add(secNode);
                }

                trv_explorer.ExpandAll();
                closeExamToolStripMenuItem.Enabled = true;
                printPreviewToolStripMenuItem.Enabled = true;
                printToolStripButton.Enabled = true;
                printToolStripMenuItem.Enabled = true;

                savedAs = true;
                AllChangesSaved = true;
            }
        }
Пример #4
0
 /// <summary>
 /// This method makes sure when the save method is called the current question is committed
 /// </summary>
 private void AddCurrentQuestion()
 {
     try
     {
         if (trv_explorer.SelectedNode.Name.Contains("ques"))
         {
             bool exists = false;
             Question present = new Question();
             try
             {
                 var temp = tempExamStore.FindAll(s => s.SectionTitle == (trv_explorer.SelectedNode.Parent.Text));
                 present = temp.SingleOrDefault(c => c.QuestionNumber == Convert.ToInt32(trv_explorer.SelectedNode.Text.Replace("Question ", "")));
                 exists = tempExamStore.Contains(present);
             }
             catch (InvalidOperationException ex)
             {
                 Debug.Print(ex.Message + Environment.NewLine + ex.InnerException);
             }
             finally
             {
                 if (tempExamStore.Contains(present))
                 {
                     int index = tempExamStore.IndexOf(present);
                     tempExamStore[index].QuestionText = txt_question_text.Text;
                     tempExamStore[index].QuestionImagePath = pct_question_picture.ImageLocation;
                     try
                     {
                         tempExamStore[index].QuestionAnswer = Convert.ToChar(((OptionControl)pan_options.Controls.OfType<OptionControl>().First<OptionControl>(p => p.IsChecked == true)).OptionLetter);
                     }
                     catch (InvalidOperationException)
                     {
                         tempExamStore[index].QuestionAnswer = 'A';
                     }
                     tempExamStore[index].QuestionNumber = Convert.ToInt32(trv_explorer.SelectedNode.Text.Replace("Question ", ""));
                     Dictionary<char, string> tempDic = new Dictionary<char, string>();
                     foreach (var ctrl in pan_options.Controls.OfType<OptionControl>())
                     {
                         tempDic.Add(Convert.ToChar(ctrl.OptionLetter), ctrl.OptionText);
                     }
                     tempExamStore[index].QuestionOptions = tempDic;
                     tempExamStore[index].SectionTitle = trv_explorer.SelectedNode.Parent.Text;
                 }
                 else
                 {
                     //save the previous question
                     Question ques = new Question();
                     try
                     {
                         ques.QuestionAnswer = Convert.ToChar(((OptionControl)pan_options.Controls.OfType<OptionControl>().First<OptionControl>(p => p.IsChecked == true)).OptionLetter);
                     }
                     catch (InvalidOperationException)
                     {
                         ques.QuestionAnswer = 'A';
                     }
                     ques.QuestionImagePath = pct_question_picture.ImageLocation;
                     ques.QuestionNumber = Convert.ToInt32(trv_explorer.SelectedNode.Text.Replace("Question ", ""));
                     Dictionary<char, string> tempDic = new Dictionary<char, string>();
                     foreach (var ctrl in pan_options.Controls.OfType<OptionControl>())
                     {
                         tempDic.Add(Convert.ToChar(ctrl.OptionLetter), ctrl.OptionText);
                     }
                     ques.QuestionOptions = tempDic;
                     ques.QuestionText = txt_question_text.Text;
                     ques.SectionTitle = trv_explorer.SelectedNode.Parent.Text;
                     //add question to store
                     this.tempExamStore.Add(ques);
                 }
             }
         }
     }
     catch (NullReferenceException ex)
     {
         Debug.Print("Error: " + ex.Message + ", Inner Exception: " + ex.InnerException);
     }
     catch (ArgumentNullException ex)
     {
         Debug.Print("Error: " + ex.Message + ", Inner Exception: " + ex.InnerException);
     }
 }
Пример #5
0
 private void trv_explorer_BeforeSelect(object sender, TreeViewCancelEventArgs e)
 {
     try
     {
         if (((TreeView)sender).SelectedNode.Name.Contains("ques"))
         {
             bool exists = false;
             Question present = new Question();
             try
             {
                 var temp = tempExamStore.FindAll(s => s.SectionTitle == ((TreeView)sender).SelectedNode.Parent.Text);
                 present = temp.SingleOrDefault(c => c.QuestionNumber == Convert.ToInt32(((TreeView)sender).SelectedNode.Text.Replace("Question ", "")));
                 exists = tempExamStore.Contains(present);
             }
             catch (NullReferenceException ex)
             {
                 Debug.Print(ex.Message + Environment.NewLine + ex.InnerException);
             }
             finally
             {
                 if (tempExamStore.Contains(present))
                 {
                     int index = tempExamStore.IndexOf(present);
                     tempExamStore[index].QuestionText = txt_question_text.Text;
                     tempExamStore[index].QuestionImagePath = pct_question_picture.ImageLocation;
                     try
                     {
                         tempExamStore[index].QuestionAnswer = Convert.ToChar(((OptionControl)pan_options.Controls.OfType<OptionControl>().First<OptionControl>(p => p.IsChecked == true)).OptionLetter);
                     }
                     catch (InvalidOperationException)
                     {
                         MessageBox.Show("An answer to this question has not been selected, the first option ('A') has been selected by default. Return to the question to change it","Option not selected");
                         tempExamStore[index].QuestionAnswer = 'A';
                     }
                     tempExamStore[index].QuestionNumber = Convert.ToInt32(((TreeView)sender).SelectedNode.Text.Replace("Question ", ""));
                     Dictionary<char, string> tempDic = new Dictionary<char, string>();
                     foreach (var ctrl in pan_options.Controls.OfType<OptionControl>())
                     {
                         tempDic.Add(Convert.ToChar(ctrl.OptionLetter), ctrl.OptionText);
                     }
                     tempExamStore[index].QuestionOptions = tempDic;
                     tempExamStore[index].SectionTitle = ((TreeView)sender).SelectedNode.Parent.Text;
                     //clear the boxes
                     txt_question_text.Clear();
                     pct_question_picture.Image = null;
                     pct_question_picture.ImageLocation = null;
                     pan_options.Controls.Clear();
                 }
                 else
                 {
                     //save the previous question
                     Question ques = new Question();
                     try
                     {
                         ques.QuestionAnswer = Convert.ToChar(((OptionControl)pan_options.Controls.OfType<OptionControl>().First<OptionControl>(p => p.IsChecked == true)).OptionLetter);
                     }
                     catch (InvalidOperationException)
                     {
                         ques.QuestionAnswer = 'A';
                     }
                     ques.QuestionImagePath = pct_question_picture.ImageLocation;
                     ques.QuestionNumber = Convert.ToInt32(((TreeView)sender).SelectedNode.Text.Replace("Question ", ""));
                     Dictionary<char, string> tempDic = new Dictionary<char, string>();
                     foreach (var ctrl in pan_options.Controls.OfType<OptionControl>())
                     {
                         tempDic.Add(Convert.ToChar(ctrl.OptionLetter), ctrl.OptionText);
                     }
                     ques.QuestionOptions = tempDic;
                     ques.QuestionText = txt_question_text.Text;
                     ques.SectionTitle = ((TreeView)sender).SelectedNode.Parent.Text;
                     //clear the boxes
                     txt_question_text.Clear();
                     pct_question_picture.Image = null;
                     pan_options.Controls.Clear();
                     RefreshInputControls();
                     //add question to store
                     this.tempExamStore.Add(ques);
                 }
             }
         }
     }
     catch (NullReferenceException)
     { 
         // A necessary Evil
     }
 }
Пример #6
0
        private void trv_explorer_AfterSelect(object sender, TreeViewEventArgs e)
        {
            if (((TreeView)sender).SelectedNode.Name.Contains("ques"))
            {
                //enable relevant options
                addOptionToolStripMenuItem.Enabled = true;
                newQuestionToolStripMenuItem.Enabled = false;
                btn_new_question.Enabled = false;
                newSectionToolStripMenuItem.Enabled = false;
                btn_new_section.Enabled = false;
                splcn_main_view.Panel2.Enabled = true;
                editToolStripMenuItem1.Enabled = false;
                previousItemToolStripMenuItem.Enabled = true;
                nextItemToolStripMenuItem.Enabled = true;
                //enable printing
                btn_print_exam.Enabled = true;
                printToolStripMenuItem.Enabled = true;
                btn_print_preview.Enabled = true;
                //display question 
                lbl_question_and_section.Text = "Section: " + ((TreeView)sender).SelectedNode.Parent.Text + ", " + ((TreeView)sender).SelectedNode.Text;

                //RefreshInputControls();

                try
                {
                    bool exists = false;
                    Question present = new Question();
                    try
                    {
                        var temp = tempExamStore.FindAll(s => s.SectionTitle == ((TreeView)sender).SelectedNode.Parent.Text);
                        present = temp.SingleOrDefault(c => c.QuestionNumber == Convert.ToInt32(((TreeView)sender).SelectedNode.Text.Replace("Question ", "")));
                        exists = tempExamStore.Contains(present);
                    }
                    catch (NullReferenceException ex)
                    {
                        Debug.Print("Error: " + ex.Message + ", Inner Exception: " + ex.InnerException);
                    }
                    finally
                    {
                        if (exists)
                        {
                            txt_question_text.Text = present.QuestionText;
                            if (string.IsNullOrWhiteSpace(present.QuestionImagePath))
                            {
                                pct_question_picture.Image = null;
                                pct_question_picture.ImageLocation = null;
                                btn_clear_picture.Visible = false;
                                btn_select_picture.Visible = false;
                                pct_question_picture.Visible = false;
                            }
                            else
                            {
                                pct_question_picture.Image = new Bitmap(present.QuestionImagePath);
                                pct_question_picture.ImageLocation = present.QuestionImagePath;
                                btn_clear_picture.Visible = true;
                                btn_select_picture.Visible = true;
                                pct_question_picture.Visible = true;
                            }
                            foreach (var item in present.QuestionOptions)
                            {
                                OptionControl ctrl = new OptionControl();
                                ctrl.OptionLetter = item.Key;
                                ctrl.OptionText = item.Value;
                                if (item.Key == present.QuestionAnswer)
                                {
                                    ctrl.IsChecked = true;
                                }
                                if (pan_options.Controls.Count != 0)
                                {
                                    OptionControl info = (OptionControl)pan_options.Controls[pan_options.Controls.OfType<OptionControl>().Count() - 1];
                                    ctrl.Location = new Point(info.Location.X, info.Location.Y + 35);
                                    int num = Convert.ToInt32(info.Name.Replace("optionControl", ""));
                                    ctrl.Name = "optionControl" + (num + 1);
                                }
                                else
                                {
                                    ctrl.Location = new Point(0, 0);
                                    ctrl.Name = "optionControl1";
                                }
                                pan_options_ControlChanged(btn_add_option, null);
                                pan_options.Controls.Add(ctrl);
                            }
                        }
                        else
                        {
                            btn_select_picture.Visible = false;
                            btn_clear_picture.Visible = false;
                            pct_question_picture.Visible = false;
                        }
                    }
                }
                catch (NullReferenceException ex)
                {
                    //MessageBox.Show(ex.Message + " " + ex.InnerException + Environment.NewLine + ex.Source);
                    Debug.Print("Error: " + ex.Message + ", Inner Exception: " + ex.InnerException);
                }
                catch (ArgumentNullException ex)
                {
                    //MessageBox.Show(ex.Message + " " + ex.InnerException + Environment.NewLine + ex.Source);
                    Debug.Print("Error: " + ex.Message + ", Inner Exception: " + ex.InnerException);
                }
            }
            //enable add questions
            else if (((TreeView)sender).SelectedNode.Name.Contains("secNode"))
            {
                splcn_main_view.Panel2.Enabled = false;
                addOptionToolStripMenuItem.Enabled = false;
                newQuestionToolStripMenuItem.Enabled = true;
                btn_new_question.Enabled = true;
                newSectionToolStripMenuItem.Enabled = false;
                btn_new_section.Enabled = false;
                previousItemToolStripMenuItem.Enabled = true;
                nextItemToolStripMenuItem.Enabled = true;
                //clear status text
                lbl_question_and_section.Text = "";
                //dislplay edit option
                editToolStripMenuItem1.Enabled = true;
                //disable printing
                btn_print_exam.Enabled = false;
                printToolStripMenuItem.Enabled = false;
                btn_print_preview.Enabled = false;
            }
            //enable add sections
            else if (((TreeView)sender).SelectedNode.Name.Contains("examNode"))
            {
                splcn_main_view.Panel2.Enabled = false;
                newSectionToolStripMenuItem.Enabled = true;
                addOptionToolStripMenuItem.Enabled = false;
                btn_new_section.Enabled = true;
                newQuestionToolStripMenuItem.Enabled = false;
                btn_new_question.Enabled = false;
                previousItemToolStripMenuItem.Enabled = false;
                nextItemToolStripMenuItem.Enabled = false;
                //display edit option
                editToolStripMenuItem1.Enabled = false;
                //disable printing
                btn_print_exam.Enabled = false;
                printToolStripMenuItem.Enabled = false;
                btn_print_preview.Enabled = false;
            }
            else
            {
                splcn_main_view.Panel2.Enabled = false;
                addOptionToolStripMenuItem.Enabled = false;
                newQuestionToolStripMenuItem.Enabled = false;
                addOptionToolStripMenuItem.Enabled = false;
                btn_new_question.Enabled = false;
                newSectionToolStripMenuItem.Enabled = false;
                btn_new_section.Enabled = false;
                //disable printing
                btn_print_exam.Enabled = false;
                printToolStripMenuItem.Enabled = false;
                btn_print_preview.Enabled = false;
            }
        }