Count vs TradeCount?

[timmbbo]

Folks, what is the difference between Count and TradeCount? For example, there is:


SystemPerformance.RealTimeTrades.Count
SystemPerformance.RealTimeTrades.TradeCount


I notice the example code uses both, seemingly interchangeably. I have a section of code:

Print SystemPerformance.RealTimeTrades.Count
Print SystemPerformance.RealTimeTrades.TradeCount
if (SystemPerformance.RealTimeTrades.TradeCount > 0)
Print SystemPerformance.RealTimeTrades[TradeCount - 1].ProfitCurrency

and after the first trade has concluded, I get:

0
1
Error: You are access an index with a value that is out-of-range


Thanks,

[NinjaTrader_Jesse]

Hello timmbbo,

Count is the C# count of the collection, the number of items in the collection. TradeCount is a custom property relating to the number of trades.

The error you are getting is because you are trying to access an index that does not exist in the collection.

[timmbbo]

Jesse, thanks, that helps, though it still leaves me with the base problem. My TradeCount is 1, but I can not access the first trade element. My code is:

Print SystemPerformance.RealTimeTrades.TradeCount
Print SystemPerformance.RealTimeTrades[SystemPerformance.RealTimeTrades.TradeCount - 1].ProfitCurrency

and I get

1
Can not access an index with a value that is invalid since it is out of range.

Since my TradeCount is 1, there should be a valid TradeCollection element at index 0. Yet, attempting to access that element gives me this error.

Your thoughts? Thanks,

[NinjaTrader_Jesse]

Hello timmbbo,

If you are trying to select a specific trade you would want to use the Count but only after the count is more than 0, there is a sample that shows that here:

https://ninjatrader.com/support/helpGuides/nt8/tradecollection.htm

[timmbbo]

Jesse, thanks, I'm making that update now. Last question:

Why would Count be different from TradeCount? Right after I complete my first trade, the RealTimeTrades.TradesCount is 1, and RealTimeTrades.Count is 0. Since I've just completed a trade, it seems like both should be 1. Why the difference?

Thanks,

[NinjaTrader_Jesse]

Hello timmbbo,

I wouldn't be able to say why that may be different however f you are trying to use the collection in some way you would want to use the count of the collection specifically which is Count.