public void updateexam(exam item, int index)
{
exam a = years[selectedyear].getsubject(selectedsubject).getexam(index);
a.setduration(item.getduration());
a.setmarks(item.getmarks());
a.setname(item.getname());
a.setoverallvalue(item.getoverallvalue());
a.setstartdate(item.getstartdate());
a.settotalmarks(item.gettotalmarks());
updateexams();
}
public examedit(ref exam it, int index)
{
InitializeComponent();
i = index;
theexam = it;
textBox1.Text = theexam.getname();
numericUpDown1.Value = theexam.getoverallvalue();
textBox2.Text = theexam.getmarks().ToString();
numericUpDown2.Value = (decimal)theexam.gettotalmarks();
dateTimePicker1.Value = theexam.getstartdate();
dateTimePicker2.Value = theexam.getstartdate() + theexam.getduration();
}