public bool deleteCTHoaDon(int id)
{
try
{
ct_hoadon ct = db.ct_hoadons.Single(m => m.id == id);
db.ct_hoadons.DeleteOnSubmit(ct);
db.SubmitChanges();
return(true);
}
catch
{
return(false);
}
}
public bool updateCTHoaDon(int id, string mhd, string msp, int sl, float tien)
{
try
{
ct_hoadon ct = db.ct_hoadons.Single(m => m.id == id);
ct.mahd = mhd;
ct.masp = msp;
ct.soluong = sl;
ct.thanhtien = tien;
db.SubmitChanges();
return(true);
}
catch
{
return(false);
}
}
public bool insertCTHoaDon(string mhd, string msp, int sl, float tien)
{
try
{
ct_hoadon ct = new ct_hoadon();
ct.mahd = mhd;
ct.masp = msp;
ct.soluong = sl;
ct.thanhtien = tien;
db.ct_hoadons.InsertOnSubmit(ct);
db.SubmitChanges();
return(true);
}
catch
{
return(false);
}
}
