Two strategies, one cancels another

[alkamid]

Hello,

My strategy is going to work like this:
When certain requirements are met, two pending orders are placed: buy stop limit and sell stop limit. If I understand correctly, I cannot achieve it in one strategy - I have to code two.
The next feature I'd like to have is to cancel one pending order when another is filled. Is it possible?
I tried to search for global variables so that my strategies could communicate - I found nothing. I though that maybe OnExecution() could help - but apparently this is not how it works (I guess it works only for executions made by strategy which contains OnExecution() ).
Any advice?

[NinjaTrader_Bertrand]

alkamid, correct with this approach you would run into the Internal Order Handling Rules (http://www.ninjatrader-support.com/H...verview36.html bottom section here).

NinjaTrader 7 will provide more flexibilty here with offering a totally unmanaged approach to order handling also -

http://www.ninjatrader.com/webnew/NT7/NinjaTrader7.html

New Unmanaged Order Submission
In 6.5 some users were burdened with our "Internal Order Handling" rules. We have introduced unmanaged order submission which bypasses the convenience of our order handling layer. This lower level of programming allows you to do what you want relative to order submission/management without any limitations other than any imposed by your broker. There are only three methods, SubmitOrder(), ChangeOrder() and CancelOrder(). You then get the flexibility of managing your orders how you see fit and optionally handling rejections.


OCO handling is possible per default when using the SetProfitTarget / SetStopLoss methods...for all other Exit methods you would have to supply the OCO logic in your code.

To learn how to work with the advanced order handling methods we offer, please check into this sample -

http://www.ninjatrader-support2.com/vb/showthread.php?t=7499

[alkamid]

Thank you for your reply. However, I suspect OnExecution() and OnOrderUpdate() to work only if our strategy is generating a change or execution. If so, the sample you provided is not what I'm looking for. I need my strategy to "detect" external executions, manual or made by another strategy.

[NinjaTrader_Bertrand]

Sorry missed this in your first post, cross strategy communication is unforuntately not supported. Users worked around this for example with txt files or DLL's to provide global variables.