void topAverage()
{
decimal top = 0;
foreach (object obj in lbStudents.Items)
{
Student student = obj as Student;
if (student.Average() > top)
{
top = student.Average();
}
}
tbTopAverage.Text = string.Format("{0:0.00}", top);
}
void fillCourses(Student student)
{
lbDosier.Items.Clear();
foreach (Course course in student.Courses)
{
lbDosier.Items.Add(course);
}
tbAverage.Text = string.Format("{0:0.00}", student.Average());
}