public FrmReport(String[,] t, int i, string[] a, string[,] sl)
        {
            InitializeComponent();
            back = 1;
            int mark = 0;

            this.a.Items.Add("Question");
            b.Items.Add(" Answer");
            c.Items.Add("Correct Answer");

            for (int x = 0; x < 5; x++)

            {
                if (t[x, 4].Equals(a[x]))
                {
                    mark++;
                    this.a.Items.Add(t[x, 4]);
                    b.Items.Add(t[x, convert(a[x])]);
                    c.Items.Add(t[x, convert(a[x])]);
                }
                else
                {
                    this.a.Items.Add(t[x, 4]);
                    b.Items.Add(t[x, convert(a[x])]);
                    c.Items.Add(t[x, convert(t[x, 4])]);
                }
            }
            double fmark = mark / 5.0 * 100.0;

            Report.Items.Add("Marks: " + fmark + "%");
            sl[i, 2] = fmark + "";
            FileUser fu = new FileUser();

            fu.setStudentList(sl);
        }