public void PopulateStudentName()
    {
        AbcDAL MyDAL = new AbcDAL("");

        DataTable ResultTable = MyDAL.SelectStudentByAuthID(1);
        string    StudentID   = ResultTable.Rows[0]["StudentID"].ToString().Trim();

        RLStudentName.Text = ResultTable.Rows[0]["StudentName"].ToString();
        DataTable ResultTableClass = MyDAL.PopulateClassByStudentIDSubjectID(StudentID, RCBSubject.SelectedValue.ToString().Trim());

        if (ResultTableClass.Rows.Count != 0)
        {
            RLGrade.Text      = ResultTableClass.Rows[0]["Grade"].ToString();
            RLAttendance.Text = ResultTableClass.Rows[0]["Attendance"].ToString().Trim();
        }
        else
        {
            RLGrade.Text      = "No record yet";
            RLAttendance.Text = "No record yet";
        }
    }