private void Button_Modify(object sender, RoutedEventArgs e)
{
if (this.login == null || this.orderId == null)
{
return;
}
string payload = Payload.ModifyOrder("LIMIT", 2, 520.0d, 0.0d);
OrderId response = Kite.Put <OrderId>(apiKey, login.access_token, Url.PlaceOrder(orderId: this.orderId.order_id), payload: payload, logger: this);
Log($"modify: {response?.order_id}");
}