public frmReservation()
{
InitializeComponent();
lsre = new List <eReservation>();
rebll = new ReservationBLL();
lsre = rebll.getAllReservation();
LoadDataGridView(dgvReservation, lsre);
}
private void btnAdd_Click(object sender, EventArgs e)
{
eReservation er = new eReservation();
er.CustomerID = Convert.ToInt32(txtCustomerID.Text);
er.ReservationDate = Convert.ToDateTime(dtpReservation.Text);
rebll.insertReservation(er);
LoadDataGridView(dgvReservation, rebll.getAllReservation());
frmReservationTitle child = new frmReservationTitle();
child.Reservationid = Convert.ToInt32(rebll.maxReservationlID().ToString());
child.Show();
}