protected void Page_Load(object sender, EventArgs e)
{
if (Redirect(UserType.Student))
{
return;
}
if (!IsPostBack)
{
// Initialize page
int studentID = (int)Session["UserID"];
ProblemSet probSet = new ProblemSet(studentID, 1, ProblemType.Addition);
Session["CurProbSet"] = probSet;
int idx = 0;
lblProbIdx.Text = idx.ToString();
lblGameOver.Text = "false";
Session["CurRound"] = 1;
Session["RightAnswerCount"] = 0;
Session["WrongAnswerCount"] = 0;
setWelcome();
setUI(probSet.ProblemList[0]);
}
}
/// <summary>
/// Submits student's answer and checks against stored answer.
/// Displays pop up with Correct/Incorrect and sets the UI for the next problem.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnSubmit_Click(object sender, ImageClickEventArgs e)
{
// check that the user input is not blank
if (String.IsNullOrWhiteSpace(txtStudentInput.Text))
{
return; // return out if the input is blank
}
// get index value from hidden label
int idx;
Int32.TryParse(lblProbIdx.Text, out idx);
// get student answer from textbox
int studentAnswer;
Int32.TryParse(txtStudentInput.Text, out studentAnswer);
txtStudentInput.Text = "";
ProblemSet probSet = (ProblemSet)Session["CurProbSet"];
StudentProblem curProb = probSet.ProblemList[idx];
// correct answer
if (studentAnswer == curProb.Problem.Result)
{
// add happy cookie image
imgCookie.ImageUrl = "images/cookie-happy.png";
imgCookie.AlternateText = "Happy Cookie";
//change the label text and color
lblAnswerResult.Text = "Correct!";
//lblAnswerResult.ForeColor = "#9BFF3A";
// increment right answers
int x = (int)Session["RightAnswerCount"];
Session["RightAnswerCount"] = ++x;
}
// incorrect answer
else
{
// add sad cookie image
imgCookie.ImageUrl = "images/cookie-sad.png";
imgCookie.AlternateText = "Sad Cookie";
//change the label text and color
lblAnswerResult.Text = "Incorrect!";
// lblAnswerResult.ForeColor = "#E52B14";
// increment wrong answers
int x = (int)Session["WrongAnswerCount"];
Session["WrongAnswerCount"] = ++x;
}
// Store problem and student's answer as a Result object
Result result = new Result();
result.StudentID = (int)Session["UserID"];
result.ProblemID = curProb.Problem.AddSubProblemID;
result.Answer = studentAnswer;
result.Level = curProb.Problem.Level;
result.Round = (int)Session["CurRound"];
// Add the result to the list node
curProb.studentResult = result;
// bring up the results pop up panel
pnlGame.Visible = false;
pnlResults.Visible = true;
// check if we've reached the end of the list
if (++idx >= probSet.ProblemList.Count)
{
// save the results to the DB
probSet.SaveResults();
lblGameOver.Text = "true";
// advance the round
int round = (int)Session["CurRound"];
Session["CurRound"] = ++round;
// switch panels to display
setFinal();
}
else
{
// store current index in hidden label
lblProbIdx.Text = idx.ToString();
// move to the next problem
setUI(probSet.ProblemList[idx]);
}
}
