private void radioButton2_CheckedChanged(object sender, EventArgs e)
{
if (radioButton2.Checked)
{
radioButton1.Checked = false;
radioButton5.Checked = false;
radioButton3.Checked = false;
}
MyLibrary.OrdinaPC(farmaci, num);
MyLibrary.Aggiorna(farmaci, num, listView1);
}