public SignOrLog_frm()
        {
            InitializeComponent();
            Register_pnl.Hide();
            InfoToolTip.SetToolTip(Info_lbl, "Halls location and more.");
            back_lbl.Hide();
            BackToolTip.SetToolTip(back_lbl, "Back");
            ThemeFunction();

            con = new OracleConnection(ordb);
            con.Open();
        }
 private void back_lbl_Click(object sender, EventArgs e)
 {
     LogIn_pnl.Show();
     Register_pnl.Hide();
     back_lbl.Hide();
 }