NinjaTrader.Cbi.Order vs. NinjaTrader.Cbi.IOrder

[trador]

I am getting an error "Unable to cast object of type 'NinjaTrader.Cbi.Order' to type 'NinjaTrader.Cbi.IOrder'"

So, what is the difference between NinjaTrader.Cbi.Order and NinjaTrader.Cbi.IOrder? Is the Order class implementing the interface IOrder?

[NinjaTrader_Brett]

Hello,

Thanks for the forum post.

The difference is that iOrder object is supported and is how you get information on the order object and is a read only interface. The order object is one that is undocumented and not supported as to what you would use it for.

-Brett

[trador]

Can NinjaTrader.Cbi.Order be converted to NinjaTrader.Cbi.IOrder, or vice versa?

[NinjaTrader_Brett]

Unfortunately would not expect that to be allowed, however it is possible it could work. Its something you would need to test since your out in unsupported territory.

-Brett

[trador]

The main issue here is that when a strategy ninjascript is running it create the order in the type of NinjaTrader.Cbi.IOrder, which is fine as long as this order turns into a position. However, if a strategy ninjascript is re-started after it exits or clashes or is down due to whatever reasons, the existing order can be identified in the account order collection, with the type of NinjaTrader.Cbi.Order.

Why do we have two class types of order if it means the same thing but lives in the different phase of its life cycle?

[NinjaTrader_Bertrand]

trador, as Brett mentioned this is unfortunately unsupported territory here, there's always the concept of strategy positions and orders vs those running on your account hence the different objects used.