public static bool add(ChiTietHoaDonNXB chitiet, int masohoadon)
{
try
{
using (EntitiesDataContext db = new EntitiesDataContext())
{
CHITIETHOADONNXB ct;
ct = (from c in db.CHITIETHOADONNXBs
where c.masohoadon.Equals(masohoadon) &&
c.masosach.Equals(chitiet.MaSoSach)
select c).SingleOrDefault();
if (ct != null)
{
return(false);
}
ct = new CHITIETHOADONNXB
{
masohoadon = masohoadon,
masosach = chitiet.MaSoSach,
soluong = chitiet.SoLuong,
dongia = chitiet.DonGia,
trangthai = chitiet.TrangThai == null ? 0 : 1
};
db.CHITIETHOADONNXBs.InsertOnSubmit(ct);
db.SubmitChanges();
return(true);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return(false);
}
}
public ChiTietHoaDonNXB(CHITIETHOADONNXB chitiet)
{
MaSoSach = chitiet.masosach;
SoLuong = chitiet.soluong;
DonGia = chitiet.dongia;
MaSoHoaDon = chitiet.masohoadon;
TrangThai = chitiet.trangthai;
}
public ChiTietHoaDonNXB(CHITIETHOADONNXB chitiet, SACH sach)
: this(chitiet)
{
Sach = new Sach(sach);
}
