for josh

      clsDBConnector dbConnector = new clsDBConnector();
      string cmdStr = "INSERT INTO tblLate  (studentID, period, dateOfLate, minsLate) " +
          "VALUES ('" + cmbStudentID.SelectedValue + "' ,'" + period + "' , '" + DateTime.Today + "','" + minsLate + "')";
      dbConnector.Connect();
      dbConnector.DoDML(cmdStr);
      dbConnector.close();
      this.Close();
      MessageBox.Show("Late Added.");