//button click that opens the SetATest window for the user lecturer
private void BtSetTest_Click(object sender, RoutedEventArgs e)
{
SetATest st = new SetATest(currentUser);
st.Show();
this.Close();
}
//This method displays displays a question and its options to a student based on the current question number
public void DisplayCurrentQuestion(int i)
{
SetATest st = new SetATest(currentUser);
st.ClearAll();
rtQuestion.Document.Blocks.Clear();
rtQuestion.Document.Blocks.Add(new Paragraph(new Run(testQuestions[i - 1].Test_Question)));
tbA.Text = testQuestions[i - 1].Option_A;
tbB.Text = testQuestions[i - 1].Option_B;
tbC.Text = testQuestions[i - 1].Option_C;
tbD.Text = testQuestions[i - 1].Option_D;
}