public string addTheLoaiSach(decimal masach, byte matl)
{
bool done = false;
try
{
CTTL ct = db.CTTLs.FirstOrDefault(x => x.MaSach == masach && x.MaTL == matl) ?? null;
if (ct == null)
{
db.CTTLs.InsertOnSubmit(new CTTL {
MaSach = masach, MaTL = matl
});
db.SubmitChanges();
done = true;
}
else
{
done = false;
}
}
catch (Exception ex)
{
done = false;
}
return(new JavaScriptSerializer().Serialize(done));
}
public string deleteCTTLSach(int masach, int matheloai)
{
bool done;
try
{
CTTL ct = db.CTTLs.First(x => x.MaSach == masach && x.MaTL == matheloai);
db.CTTLs.DeleteOnSubmit(ct);
db.SubmitChanges();
done = true;
}
catch (Exception)
{
done = false;
}
return(new JavaScriptSerializer().Serialize(done));
}
public string deleteTheLoaiSach(decimal masach, byte matl)
{
bool done;
try
{
CTTL ct = db.CTTLs.FirstOrDefault(x => x.MaSach == masach && x.MaTL == matl);
db.CTTLs.DeleteOnSubmit(ct);
db.SubmitChanges();
done = true;
}
catch (Exception ex)
{
done = false;
}
return(new JavaScriptSerializer().Serialize(done));
}
