小编Zay*_*ayn的帖子

    private void QuestionAnswer_Load(object sender, EventArgs e)
    {

        txtQuestion.Enabled = false;
        txtQuestion.BackColor = Color.White;
        grpMultipleChoice.Enabled = false;
        grpSingleChoice.Enabled = false;

        btnCheckAnswer.Enabled = false;
        btnNext.Enabled = false;
        btnQuit.Enabled = false;

        //force student to enter registration details
        if (txtStudentName.Text == "" && txtStudentNumber.Text == "" && txtModuleNumber.Text == "")
        {
            btnStart.Enabled = false;
            MessageBox.Show("You must enter your registration details at the upper right corner");
        }

        //declare a list
        lstNumbers = new ArrayList();

        //create a random number generator
        Random rndNumber = new Random();

        //generate …