private void penjadwalanToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            Form form = Application.OpenForms["FormDaftarJadwal"];

            if (form == null)
            {
                FormDaftarJadwal frm = new FormDaftarJadwal();
                frm.Owner = this;
                frm.Show();
            }
            else
            {
                form.Show();
                form.BringToFront();
            }
        }
        private void button1_Click(object sender, EventArgs e)
        {
            string hasil = Jadwal.HapusData(comboBoxID.Text);

            if (hasil == "1")
            {
                MessageBox.Show("Jadwal telah dihapus");

                FormDaftarJadwal frm = (FormDaftarJadwal)this.Owner;
                frm.FormDaftarJadwal_Load(sender, e);
                this.Close();
            }
            else
            {
                MessageBox.Show("Error. Pesan : " + hasil);
            }
        }
 public FormTambahJadwal()
 {
     InitializeComponent();
     frmDaftar = (FormDaftarJadwal)this.Owner;
 }