public void saveThanhLySach(TLSach tl)
{
XDocument doc = XDocument.Load(nameFile);
XElement school = doc.Element(TITTLE_THANHLYSACHS);
school.Add(new XElement(TITTLE_THANHLYSACH,
new XElement(MaSach, tl.MaSach),
new XElement(TenSach, tl.TenSach),
new XElement(LyDoThanhLy, tl.LyDoThanhLy)));
doc.Save(nameFile);
}
private void btnThanhLy_Click(object sender, EventArgs e)
{
string masach = cbdsms.Text;
TLSach tls = new TLSach();
tls.MaSach = cbdsms.Text;
tls.TenSach = txtTenSach.Text;
tls.LyDoThanhLy = cbLyDo.Text;
tl.saveThanhLySach(tls);
sm.removeSach(masach);
ReLoadForm();
}