public int GetAgeYears(Student st)
{
int age;
DateTime dtnow = DateTime.Now;
DateTime dtbth = new DateTime(st.berthYear, st.berthMonth, st.berthDay);
TimeSpan ts = dtnow - dtbth;
age = Convert.ToInt32(ts.TotalDays) / 365;
return age;
}
public string GetFullName(Student st)
{
string full_name = String.Format("{0,15} {1,15} {2,15}", st.firstName, st.middleName, st.lastName);
return full_name;
}
