ChangeOrder()

["CJS"]

Hi,

With the UNMANAGED APPROACH.

When some condition is true, I want to change the Quantity parameter of an order that has not been either Canceled or filled. Since the order is submited, do I have to reset it to null to call the ChangeOrder()? In that case, Which even driven method can I use?

Thanks.

["CJS"]

To be more precise.

I want to call the changeOrder method to change one order when other different order is filled.

Thanks

[NinjaTrader_RyanM1]

Hello CJS,

Correct. You'll need to access the specific IOrder object when submitting ChangeOrder. You'll want to check that this object is not null prior to the statement.

Order Modification
Unlike the Managed approach where you could modify a working order by calling the entry order method again with your new parameters, the Unmanaged approach requires the utilization of the ChangeOrder() method. The ChangeOrder() method requires you to have access to the IOrder object you wish to modify so it is important to hold onto those for any active order you have in your strategy.

 [LEFT]protected override void OnBarUpdate() 
[LEFT]{
// Raise stop loss to breakeven when you are at least 4 ticks in profit
if (stopOrder != null && stopOrder.StopPrice < Position.AvgPrice && Close[0] >= Position.AvgPrice + 4 * TickSize)
ChangeOrder(stopOrder, stopOrder.Quantity, stopOrder.LimitPrice, Position.AvgPrice);
}[/LEFT]

[/LEFT]

[NinjaTrader_RyanM1]

The order you're changing should not be null, and you can work within OnExecution() to check the orderState for the other order.

["CJS"]

But. What happens, in the UNMANAGED APPROACH, when an order has been submitted, but it has not been either canceled or filled and I want to use it the next trading day to submit a new order?. Do I have to cancel it and reset it to null before de next trading day?

Thanks

[NinjaTrader_Bertrand]

CJS, it would depend on the order's TIF settting - if you're submittting a DAY order it would be auto cancelled at the end of day as it expires then. You should ensure the IOrder object is nullified on a cancelled orderstate and then you can submit a fresh order via SubmitOrder().

["CJS"]

Can I call de CancelOrder to cancel one order from de OnExecution of the other diferent order? Or the cancelOrder Method has to be called just from de OnBarUpdate?

Thanks

[NinjaTrader_Bertrand]

CJS, you can use CancelOrder() in any of the event driven order methods or the OnBarUpdate().