Error on calling 'OnExecution'

[BGWTEX]

What's the cause ? What's the fix ?

8/26/2016 8:39:55 AM
Strategy Error on calling 'OnExecution' method for strategy 'bgw_a1_OR_Trade_WIPTemp/bbbd8ba248c04ba6a26359eb31aa8e5f': Object reference not set to an instance of an object.

I've attached the "Log".

Thanks,
Bruce

[NinjaTrader_ChelseaB]

Hello Bruce,

The error means that something was called that was null.

The fix is to check for null before calling a value (that can be null).

For example if you are checking the state of an order:

private IOrder myOrder;

if (myOrder != null && myOrder.OrderState == OrderState.Filled)
{
// execute code
}

[BGWTEX]

OK, thanks.

So something like forgetting to put this " CancelOrder(ORTrdMac4StopOrder); "
but remembering to set to 'null', like this " ORTrdMac4StopOrder = null; "
would also cause of my error message, duh . . .

[NinjaTrader_ZacharyG]

Hello BGWTEX,

You'll want to make sure that ORTrdMac4StopOrder is not null before calling CancelOrder() on it.

[BGWTEX]

Thanks ZacharyG, I got that part. But I got to wondering . . .

Is it OK to set to null, ORTrdMac4StopOrder = null; right after the CancelOrder(), CancelOrder(ORTrdMac4StopOrder); ? I guess it is, looks like I've been doing it.

[NinjaTrader_ZacharyG]

Hello BGWTEX,

Yes, you can set ORTrdMac4StopOrder to null after calling CancelOrder() on it.