public BillDetail(string billId, BillInfo parent) { this.billId = billId; this.parent = parent; }
public EnterPassword(string psw, BillInfo parent) { this.parent = parent; Psw = psw; }
public EnterPaySubmit(BillInfo parent) { this.parent = parent; }
public EnterAuthKey(BillInfo parent) { this.parent = parent; }