private void btnDeleteSelectedUser_Click(object sender, EventArgs e)
{
int id = Convert.ToInt32(dgvUsers.Rows[dgvUsers.CurrentCell.RowIndex].Cells[0].Value);
string username = dgvUsers.Rows[dgvUsers.CurrentCell.RowIndex].Cells[1].Value.ToString();
DialogResult dialogResult = MessageBox.Show("Are you sure you want to delete this user?", "Confirm Delete?", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dialogResult == DialogResult.Yes) //delete the user if they confirm yes
{
if (rdoAdmins.Checked) //check for the type of user (admin,teacher,parent,student)
{
MathWizDB.DeleteUser("admin", id, username);
}
else if (rdoTeachers.Checked)
{
MathWizDB.DeleteUser("teacher", id, username);
}
else if (rdoParents.Checked)
{
MathWizDB.DeleteUser("parent", id, username);
}
else if (rdoStudents.Checked)
{
MathWizDB.DeleteUser("student", id, username);
}
lblDeleted.Text = username + " was deleted";
lblDeleted.Show();
btnRefresh_Click(null, null);
}
else if (dialogResult == DialogResult.No)
{
lblDeleted.Text = "Delete cancelled";
lblDeleted.Show();
}
}
private void backgroundWorkerInsertData_DoWork(object sender, DoWorkEventArgs e)
{
switch (this.Tag.ToString())
{
case "Admin":
Admin newAdmin = new Admin(username, firstName, lastName, password);
MathWizDB.InsertAdmin(newAdmin);
break;
case "Teacher":
Teacher newTeacher = new Teacher(username, firstName, lastName, password);
MathWizDB.InsertTeacher(newTeacher);
break;
case "Parent":
Parent newParent = new Parent(username, firstName, lastName, password);
MathWizDB.InsertParent(newParent);
break;
case "Student":
Student newStudent = new Student(username, firstName, lastName, password);
MathWizDB.InsertStudent(newStudent, parentID, klassID);
break;
}
}
private void btnDeleteTest_Click(object sender, EventArgs e)
{
int testID = Convert.ToInt32(dgvTests.Rows[dgvTests.CurrentCell.RowIndex].Cells[0].Value);
int gradedTestID;
DialogResult dialogResult = MessageBox.Show("Are you sure you want to delete this test?", "Confirm Delete?", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dialogResult == DialogResult.Yes) //delete the test if they confirm yes
{
// Grab the graded_test id with the test id (I'm assuming/hoping that testid is unique with this select)
gradedTestID = MathWizDA.SelectGradedTestIDViaTestID(testID);
//Delete the Graded Questions with the Graded Test ID
MathWizDB.DeleteGradedQuestions(gradedTestID);
//Delete the actual Graded Test with the Standard Test ID
MathWizDB.DeleteGradedTestWithTestID(testID);
//Delete Normal Questions with the Standard Test ID
MathWizDB.DeleteNormalQuestions(testID);
//Finally, delete the normal standard test
MathWizDB.DeleteNormalTest(testID);
}
}
//Thread for saving the graded test (and sometimes the practice test
void backgroundWorkerSaveTest_DoWork(object sender, DoWorkEventArgs e)
{
switch (this.Tag.ToString())
{
case "placement":
//just insert the graded test
MathWizDB.InsertGradedTest(gradedPlacementTest, student.Id, gradedPlacementTest.PlacementTest.Id, "Placement Test", gradedPlacementTest.RecommendedLevel);
//update student's mastery level
MathWizDB.UpdateMasteryLevel(student.Username, gradedPlacementTest.RecommendedLevel);
break;
case "practice":
//first insert the test since the teacher did not make it, but the student just generated it
gradedPracticeTest.PracticeTest.Id = MathWizDB.InsertTest(klass.Id, gradedPracticeTest.PracticeTest, "Practice Test", 0, gradedPracticeTest.PracticeTest.MinLevel, gradedPracticeTest.PracticeTest.MaxLevel);
//then insert the graded test. The insertGradedTest method also inserts the graded Questions
gradedPracticeTest.Id = MathWizDB.InsertGradedTest(gradedPracticeTest, student.Id, gradedPracticeTest.PracticeTest.Id, "Practice Test");
break;
case "mastery":
//just insert the graded test
MathWizDB.InsertGradedTest(gradedMasteryTest, student.Id, gradedMasteryTest.MasteryTest.Id, "Mastery Test", 0, 1, gradedMasteryTest.Passed);
break;
}
}
private void btnChange_Click(object sender, EventArgs e)
{
if (Validation.IsInteger(txtNewMasteryLevel) && Validation.IsWithinRangeInclusive(txtNewMasteryLevel, 12, 0))
{
int newML = Convert.ToInt32(txtNewMasteryLevel.Text);
MathWizDB.UpdateMasteryLevel(username, newML);
this.Close();
}
}
public static int InsertTest(int klassID, Test test, string testType, decimal passThreshold, int minLevel, int maxLevel)
{
test.Id = 0;
//Everything besides TestType can be null
string insertStatement = "INSERT INTO tests (KlassID, TestType, TimeLimit, RandomlyGenerated, PassThreshHold, MinLevel, MaxLevel)"
+ " OUTPUT INSERTED.Id" //get the last inserted ID
+ " VALUES(@KlassID, @Type, @TimeLimit, @RNG, @PassThreshold, @MinLevel, @MaxLevel)";
// create command object with SQL query and link to connection object
SqlCommand Cmd = new SqlCommand(insertStatement, conn);
// create your parameters and add values from object
Cmd.Parameters.AddWithValue("@KlassID", klassID);
Cmd.Parameters.AddWithValue("@Type", testType);
Cmd.Parameters.AddWithValue("@TimeLimit", test.TimeLimit);
Cmd.Parameters.AddWithValue("@RNG", test.RandomlyGenerated);
Cmd.Parameters.AddWithValue("@PassThreshold", passThreshold);
Cmd.Parameters.AddWithValue("@MinLevel", minLevel);
Cmd.Parameters.AddWithValue("@MaxLevel", maxLevel);
try
{
// Open the connection
conn.Open();
// execute the query
test.Id = Convert.ToInt32(Cmd.ExecuteScalar());
if (conn != null && conn.State == ConnectionState.Open)
{
conn.Close();
}
//now insert the questions in the test
for (int i = 0; i < test.Questions.Count; i++)
{
test.Questions[i].Id = MathWizDB.InsertQuestion(test.Questions[i], test.Id);
}
}
catch (SqlException ex)
{
MessageBox.Show(ex.Message);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
if (conn != null && conn.State == ConnectionState.Open)
{
conn.Close();
}
}
return(test.Id);
}
private void btnCreateTest_Click(object sender, EventArgs e)
{
btnCreateTest.Text = "Creating Test";
btnCreateTest.Enabled = false;
//if form validation is good then
if (ValidateForm())
{
int numberOfQuestions = Convert.ToInt32(cboNumberOfQuestions.SelectedItem);
int numberOfQuestionsPerML = numberOfQuestions / 12; //take a few questions from each mastery level
TimeSpan questionTimeLimit = new TimeSpan(0, 1, 0);
PlacementTest placementTest = new PlacementTest();
for (int ml = 1; ml <= 12; ml++) //get questions from each mastery level
{
//make custom timelimits for each question depending on complexity
questionTimeLimit = CalculateQuestionTimeLimit(cboQuestionSpeed.SelectedItem.ToString(), ml);
//get the questions for just the current mastery level in this for loop
List <Question> tempQuestionList = Question.GenerateRandomQuestions(ml, questionTimeLimit, numberOfQuestionsPerML);
foreach (Question q in tempQuestionList) //add current mastery level questions to the actual placement test
{
placementTest.Questions.Add(q);
}
}
//set other attributes of the test
placementTest.MinLevel = 1;
placementTest.MaxLevel = 12;
placementTest.TimeLimit = TimeSpan.FromTicks(questionTimeLimit.Ticks * numberOfQuestions);
//insert it
placementTest.Id = MathWizDB.InsertTest(klassID, placementTest, "Placement Test", 0, placementTest.MinLevel, placementTest.MaxLevel);
this.Close();
if (placementTest.Id > 0)
{
MessageBox.Show("Your new randomly generated Placement test has been created");
}
else
{
MessageBox.Show("Failed to create placement test", "error");
}
}
else
{
MessageBox.Show("A placement test has already been created for this class.", "error");
}
btnCreateTest.Text = "Create Test";
btnCreateTest.Enabled = true;
}
//Delete Student Button
private void button2_Click(object sender, EventArgs e)
{
int id = Convert.ToInt32(dgvStudents.Rows[dgvStudents.CurrentCell.RowIndex].Cells[0].Value);
string username = dgvStudents.Rows[dgvStudents.CurrentCell.RowIndex].Cells[1].Value.ToString();
DialogResult dialogResult = MessageBox.Show("Are you sure you want to delete this student?", "Confirm Delete?", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (dialogResult == DialogResult.Yes) //delete the user if they confirm yes
{
MathWizDB.DeleteUser("student", id, username);
}
}
private void backgroundWorkerUpdatePassword_DoWork(object sender, DoWorkEventArgs e)
{
string userType = MathWizDA.FindUserType(username_G);
switch (userType)
{
case "admin": user = new Admin(); break;
case "teacher": user = new Teacher(); break;
case "parent": user = new Parent(); break;
case "student": user = new Student(); break;
}
string passwordHash = user.HashPassword(txtNewPassword.Text);
MathWizDB.UpdatePassword(userType, username_G, passwordHash);
}
private void btnCreateClass_Click(object sender, EventArgs e)
{
if (txtClassName.Text != "" && cmbTeacher.SelectedIndex != -1)
{
string klassName = txtClassName.Text;
int teacherID = allTeachers[cmbTeacher.SelectedIndex].Id;
Klass newKlass = new Klass(klassName);
MathWizDB.InsertKlass(newKlass, teacherID);
lblAdded.Text = newKlass.KlassName + " was successfully added";
lblAdded.Show();
}
else
{
MessageBox.Show("Class Name and Teacher are required");
}
}
private void btnGenerateTests_Click(object sender, EventArgs e)
{
btnGenerateTests.Text = "Generating Tests";
btnGenerateTests.Enabled = false;
for (int ml = 1; ml <= 12; ml++)
{
MasteryTest masteryTest = new MasteryTest();
int numberOfQuestions;
TimeSpan questionTimeLimit = new TimeSpan(0, 1, 0);
TimeSpan testTimeLimit = new TimeSpan(1, 0, 0);
decimal passThreshhold = 1;
numberOfQuestions = Convert.ToInt32(cboNumberOfQuestions.SelectedItem);
switch (cboQuestionSpeed.SelectedItem.ToString())
{
case "Slow":
if (ml >= 1 && ml <= 3)
{
questionTimeLimit = new TimeSpan(0, 0, 45);
}
else if (ml >= 4 && ml <= 6)
{
questionTimeLimit = new TimeSpan(0, 1, 0);
}
else if (ml >= 7 && ml <= 9)
{
questionTimeLimit = new TimeSpan(0, 0, 45);
}
else if (ml >= 10 && ml <= 12)
{
questionTimeLimit = new TimeSpan(0, 3, 0);
}
break;
case "Medium":
if (ml >= 1 && ml <= 3)
{
questionTimeLimit = new TimeSpan(0, 0, 30);
}
else if (ml >= 4 && ml <= 6)
{
questionTimeLimit = new TimeSpan(0, 0, 45);
}
else if (ml >= 7 && ml <= 9)
{
questionTimeLimit = new TimeSpan(0, 0, 30);
}
else if (ml >= 10 && ml <= 12)
{
questionTimeLimit = new TimeSpan(0, 2, 0);
}
break;
case "Fast":
if (ml >= 1 && ml <= 3)
{
questionTimeLimit = new TimeSpan(0, 0, 15);
}
else if (ml >= 4 && ml <= 6)
{
questionTimeLimit = new TimeSpan(0, 0, 30);
}
else if (ml >= 7 && ml <= 9)
{
questionTimeLimit = new TimeSpan(0, 0, 15);
}
else if (ml >= 10 && ml <= 12)
{
questionTimeLimit = new TimeSpan(0, 1, 0);
}
break;
}
switch (cboPassThreshhold.SelectedItem.ToString())
{
case "70%":
passThreshhold = .7m;
break;
case "80%":
passThreshhold = .8m;
break;
case "90%":
passThreshhold = .9m;
break;
case "95%":
passThreshhold = .95m;
break;
case "100%":
passThreshhold = 1m;
break;
}
masteryTest.MasteryLevel = ml;
masteryTest.Questions = Question.GenerateRandomQuestions(ml, questionTimeLimit, numberOfQuestions);
masteryTest.TimeLimit = TimeSpan.FromTicks(questionTimeLimit.Ticks * numberOfQuestions);
masteryTest.PassThreshhold = passThreshhold;
masteryTest.RandomlyGenerated = true;
MathWizDB.InsertTest(klassID, masteryTest, "Mastery Test", masteryTest.PassThreshhold, masteryTest.MasteryLevel, masteryTest.MasteryLevel);
this.DialogResult = DialogResult.OK;
this.Close();
}
btnGenerateTests.Text = "Generate Tests";
btnGenerateTests.Enabled = false;
}
//MARK Button Handlers
private void btnStartFinish_Click(object sender, EventArgs e)
{
if (btnStartFinish.Text == "Start Test") //start test, show the first question
{
testFinished = false;
btnStartFinish.Text = "Finish Test";
btnStartFinish.Hide();
gbxQuestion.Show();
currentQuestionNum = 0; //array starts at 0
timerTest.Start();
switch (this.Tag.ToString())
{
case "placement":
ShowQuestion(gradedPlacementTest.PlacementTest.Questions[currentQuestionNum]);
break;
case "practice":
ShowQuestion(gradedPracticeTest.PracticeTest.Questions[currentQuestionNum]);
break;
case "mastery":
ShowQuestion(gradedMasteryTest.MasteryTest.Questions[currentQuestionNum]);
break;
}
}
else if (btnStartFinish.Text == "Finish Test") //finish test, record score, write score to db
{
switch (this.Tag.ToString()) //record information for the completed test
{
case "placement":
gradedPlacementTest.Score = (decimal)gradedPlacementTest.CorrectlyAnsweredQuestions.Count / (decimal)(gradedPlacementTest.CorrectlyAnsweredQuestions.Count + (decimal)gradedPlacementTest.WronglyAnsweredQuestions.Count) * 100;
gradedPlacementTest.TimeTakenToComplete = gradedPlacementTest.PlacementTest.TimeLimit - TimeSpan.ParseExact(lblTimerTest.Text, "mm\\:ss", CultureInfo.InvariantCulture);
gradedPlacementTest.DateTaken = DateTime.Now;
gradedPlacementTest.Feedback = gradedPlacementTest.Score.ToString();
int minLevelWrong = 12;
for (int i = 0; i < gradedPlacementTest.WronglyAnsweredQuestions.Count; i++)
{
if (gradedPlacementTest.WronglyAnsweredQuestions[i].Question.MasteryLevel < minLevelWrong)
{
minLevelWrong = gradedPlacementTest.WronglyAnsweredQuestions[i].Question.MasteryLevel;
}
}
gradedPlacementTest.RecommendedLevel = minLevelWrong;
MessageBox.Show("You have been placed at Mastery Level: " + gradedPlacementTest.RecommendedLevel.ToString() + "\nYour Score was: " + gradedPlacementTest.Score.ToString("###.##"));
break;
case "practice":
gradedPracticeTest.Score = (decimal)gradedPracticeTest.CorrectlyAnsweredQuestions.Count / (decimal)(gradedPracticeTest.CorrectlyAnsweredQuestions.Count + (decimal)gradedPracticeTest.WronglyAnsweredQuestions.Count) * 100;
gradedPracticeTest.TimeTakenToComplete = gradedPracticeTest.PracticeTest.TimeLimit - TimeSpan.ParseExact(lblTimerTest.Text, "mm\\:ss", CultureInfo.InvariantCulture);
gradedPracticeTest.DateTaken = DateTime.Now;
gradedPracticeTest.Feedback = gradedPracticeTest.Score.ToString();
MessageBox.Show("Your Score was: " + gradedPracticeTest.Score.ToString());
break;
case "mastery":
gradedMasteryTest.Score = (decimal)gradedMasteryTest.CorrectlyAnsweredQuestions.Count / (decimal)(gradedMasteryTest.CorrectlyAnsweredQuestions.Count + (decimal)gradedMasteryTest.WronglyAnsweredQuestions.Count) * 100;
gradedMasteryTest.TimeTakenToComplete = gradedMasteryTest.MasteryTest.TimeLimit - TimeSpan.ParseExact(lblTimerTest.Text, "mm\\:ss", CultureInfo.InvariantCulture);
gradedMasteryTest.DateTaken = DateTime.Now;
gradedMasteryTest.Feedback = gradedMasteryTest.Score.ToString();
if (gradedMasteryTest.Score > gradedMasteryTest.MasteryTest.PassThreshhold) //determine whether they passed or not.
{
gradedMasteryTest.Passed = true;
MathWizDB.UpdateMasteryLevel(student.Username, ++student.MasteryLevel); //bump the master level up
MessageBox.Show("You scored " + gradedMasteryTest.Score.ToString("###.##") + " and have now passed to level " + student.MasteryLevel);
}
else
{
gradedMasteryTest.Passed = false;
MessageBox.Show("You scored " + gradedMasteryTest.Score.ToString("###.##") + " and will need to take this test again");
}
break;
}
//write test to database in another thread
backgroundWorkerSaveTest.RunWorkerAsync();
}
}