private void button1_Click(object sender, EventArgs e)
        {
            for (int rows = 0; rows < ratingReportTable.Rows.Count; rows++)
            {
                if (ratingReportTable.Rows[rows].Cells[3].Value != null)
                {
                    try
                    {
                        int     newRating = int.Parse(ratingReportTable.Rows[rows].Cells[3].Value.ToString());
                        Student s         = Program.getStudentObject(ratingReportTable.Rows[rows].Cells[0].Value.ToString());
                        Console.WriteLine(s.getRating() + newRating);
                        s.setRating(newRating);
                        Program.Update_Student_Rating_In_DB(s);
                        this.Hide();
                    }

                    catch (Exception ex)
                    {
                        MessageBox.Show("The input must be a number", "Invalid Input", MessageBoxButtons.OK);
                    }
                }
            }
        }