// Used to change to another display that is stored by this component
public void ChangeDisplay(string newDisplayID)
{
NextQuestionBox.Visible = true; // Show the "Next" boxes at the bottom of the table
NextCorrectAnswerBox.Visible = true;
NextWrongAnswer1Box.Visible = true;
NextWrongAnswer2Box.Visible = true;
StoreDisplay(); // Store this display in preparation for switching
if (storedDetails.ContainsKey(username) && storedDetails[username].ContainsKey(newDisplayID)) // If this display already exists
{
questions = new List<TextBox>(storedDetails[username][newDisplayID].questions); // Show all details from the found display
correctAnswers = new List<TextBox>(storedDetails[username][newDisplayID].correctAnswers);
wrongAnswers1 = new List<TextBox>(storedDetails[username][newDisplayID].wrongAnswers1);
wrongAnswers2 = new List<TextBox>(storedDetails[username][newDisplayID].wrongAnswers2);
UpdateDisplay();
}
else // If the display does not already exist
{
questions = new List<TextBox>(); // Clear all columns
correctAnswers = new List<TextBox>();
wrongAnswers1 = new List<TextBox>();
wrongAnswers2 = new List<TextBox>();
UserDatabase userDB = new UserDatabase(); // Initialise a new UserDatabase for reading purposes
UserQuestions userQuestions = userDB.getUserQuestions(username); // Read the current user's questions
List<string[]> details = userQuestions.getQuestions(newDisplayID); // Extract the questions for this set
for (int i = 0; i < details.Count; i++) // for each question
{
questions.Add(new TextBox()); // Add a new cell for the question
questions[i].BorderStyle = BorderStyle.FixedSingle; // Update the border
questions[i].Click += new EventHandler(BoxClicked); // Add an event handler so that when the cell is clicked the Enter Value panel appears
questions[i].Text = details[i][0]; // Fill the cell with the question
correctAnswers.Add(new TextBox()); // Add a new cell for the Correct Answer
correctAnswers[i].BorderStyle = BorderStyle.FixedSingle;
correctAnswers[i].Click += new EventHandler(BoxClicked);
correctAnswers[i].Text = details[i][1];
wrongAnswers1.Add(new TextBox()); // Add a new cell for the wrong answer 1
wrongAnswers1[i].BorderStyle = BorderStyle.FixedSingle;
wrongAnswers1[i].Click += new EventHandler(BoxClicked);
wrongAnswers1[i].Text = details[i][2];
wrongAnswers2.Add(new TextBox()); // Add a new cell for the wrong answer 2
wrongAnswers2[i].BorderStyle = BorderStyle.FixedSingle;
wrongAnswers2[i].Click += new EventHandler(BoxClicked);
wrongAnswers2[i].Text = details[i][3];
}
UpdateDisplay(); // Update the display to show the columns to the user
}
currentID = newDisplayID; // Update the currentID tracking variable to track the current ID
}