protected void btnSave_Click(object sender, EventArgs e)
    {
        try
        {
            if (!Page.IsValid) return;

            BLTunnit tunti = new BLTunnit();
            tunti.koodaaja = txtkoodaaja.Text;
            tunti.paivamaara = txtpvm.Text;
            tunti.tuntimaara = txttuntimaara.Text;
            tunti.minuutit = txtminuutit.Text;
            tunti.id = Convert.ToInt64(hndId.Value);

            TunnitDAL objTuntiDAL = new TunnitDAL();
            if ((hndId.Value.Trim().Length > 0) &&
                (Convert.ToInt64(hndId.Value) > 0))
                objTuntiDAL.Update(tunti);
            else
                objTuntiDAL.Create(tunti);

            ClearScreen();
            BindGrid();
            lblMessage.Text = "Record saved successfully";
        }
        catch (Exception ex)
        {
            lblMessage.Text = "There is an error occured while processing the request. Please verify the code!";
        }
    }