private void Update_All()
{
appealsDB.Update_After_Lecturer_Review(CONFIRM, appeals[lstB_Appeals_List.SelectedIndex]);
StudentsGradesDB Grades = new StudentsGradesDB();
StudentDB UpdateStudent = new StudentDB();
Grades.UpdateTime(students[lstB_Appeals_List.SelectedIndex].getID(), appeals[lstB_Appeals_List.SelectedIndex].Get_Course_Name(), Convert.ToInt32(txtB_New_Grade.Text));
float NewAverage = Grades.GetStudentAverage(students[lstB_Appeals_List.SelectedIndex].getID());
UpdateStudent.UpdateAverage(students[lstB_Appeals_List.SelectedIndex].getID(), NewAverage);
lstB_Appeals_List.Items.Clear();
lstB_Appeals_List.ResetText();
Initialise_Again();
}