public void deleteSach()
{
//SACH sach = repository.getSach(view.selectedSach);
string masach = view.selectedSach;
if (masach != "")
{
SACH sach = repository.getSach(masach);
//view.Log(sach.MASACH);
if (valid(sach))
{
SACH kq = repository.deleteSach(masach);
//view.Log("Đã lưu thành công");
getListSach();
}
}
}