public bool themChamCong(ChamCong_PDA cc)
{
if (!db.ChamCong_PDAs.Contains(cc))
{
db.ChamCong_PDAs.InsertOnSubmit(cc);
db.SubmitChanges();
return(true);
}
return(false);
}
public bool xoaChamCong(string maNV, int thang, int nam)
{
ChamCong_PDA b = new ChamCong_PDA();
b = db.ChamCong_PDAs.Single(a => a.thang == thang && a.nam == nam && a.maNhanVien == maNV);
if (b != null)
{
db.ChamCong_PDAs.DeleteOnSubmit(b);
db.SubmitChanges();
return(true);
}
return(false);
}
