How to update input parameter?

[zoharcho]

Hello,

I want to make a money management system (for example: if I had a winning trade, the script will add the profit to the total account value and risk relative to that).
In order to do that, I need help in changing the "remembered" value of an input parameter (for example -> account value) by the script, and not by the user.

In other words:
-currently, I have an input parameter named: Account value which is by default or by a user defined as 10,000.
-After a winning trade of $1000, I want the value of the input parameter to change to 11,000.
-The GOAL is to make a parameter that holds a value even if I disable/enable the strategy and even close and re-open the ninjatrader.

-Currently I can see that if I change manually the input parameter it is being remembered even if I disable/enable the strategy and even close and re-open the ninjatrader.
I want to create the ability that it automatically updates and being saved...

Thanks in advance!!!

[NinjaTrader_ChrisL]

Hi zoharcho, thanks for your post.

The script will need to write the data to a .txt file to save it between instances. We have an example here demonstrating file IO from an indicator:

https://ninjatrader.com/support/help..._propertie.htm

The final value that needs to be saved can be written in OnStateChanged when State = State.Terminated.

Best regards,
-ChrisL

[zoharcho]

Great!!! will check it out - I thought I will probably need to write it to a txt file, thank you for the speedy response!