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NT7 - code break changes + TRADING LIVE


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NT7 - code break changes + TRADING LIVE

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  #1 (permalink)
Frankfurt
 
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hi all,

i like to collect some NT7-info- stuff here :

how is it about going Live with NT / yet ?


how / what are these often told "code break changes" exactly ?

thanks for some input !


-

max-td
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  #3 (permalink)
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starting very simple :
is there a need on indicators like thisone to do anything to make it work on NT7 ?

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found on NT 7 download-site :

Known Critical Issues NT 7 Beta

#1 Basic Entry and FX Pro Order Grid: Please DO NOT modify order prices within these grids. Doing so will result in unsolicited order price changes to other orders displayed in this grid.

#2 NinjaScript Strategies: Please DO NOT run automated NinjaScript strategies on a live account as doing so can result in live order prices not correctly amended to reflect the prices coded in the strategy.

#3 3rd Party NinjaScript Components Please DO NOT install any 3rd party indicators and/or strategies at this time.We are working on resolving these issues and will report back when they are resolved

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max-td View Post
starting very simple :
is there a need on indicators like thisone to do anything to make it work on NT7 ?

Nothing to do, it'll compile without modifications.
The main things I had to do, for is porting some indicators from 6.5 to 7, is changing the methods which needs different arguments type/number/...
In most cases, the porting was not too hard, but I've maybe been lucky...

BTW, I didn't check the last Beta, but for me we are far away from a stable version, and I won't take the risk to use it with cash. Many methods still undocumented, it still crashing without clear reasons, etc, etc.

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  #6 (permalink)
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The main things I had to do, for is porting some indicators from 6.5 to 7, is changing the methods which needs different arguments type/number/...


can you give examples of what you are talking about ?

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  #7 (permalink)
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max-td View Post
how is it about going Live with NT / yet ?

it's not advised.



max-td View Post
how / what are these often told "code break changes" exactly ?

The intentional ones have always been listed here:

NinjaScript Code Breaking Changes for NinjaTrader 7 - NinjaTrader Support Forum

The unintentional ones and problem reports from users have always been discussed here:

Version 7 Beta General Questions & Bug Reports - NinjaTrader Support Forum

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  #8 (permalink)
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thanks richard,
but this is all very abstract for me.
if i could see some examples on what + how to change that its ok - that would help me.
this pdf. gives a lot of infos - but honestly, i dont understand this stuff without having some easy examples shown on real indicators.

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  #9 (permalink)
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max-td View Post
thanks richard,
but this is all very abstract for me.
if i could see some examples on what + how to change that its ok - that would help me.
this pdf. gives a lot of infos - but honestly, i dont understand this stuff without having some easy examples shown on real indicators.

My advice then, is to just try it and post any problems you run across here. Most indicators will compile and work without any changes. A few things will require the old infinite lookback behaviour on dataseries... this will usually show up as stuff repeating on your screen every 256 bars. Some of the drawing methods need different arguments, but you'll know that because your indicator won't compile. I believe there are a couple changes to how sessions work, so if your code was session-aware, you'll need to make adjustments. If you use a custom Plot() method, the way you need to code it is a little different to make the x-axis points line up with multiple-timeseries bars.

But most things work just fine as-is, even though NT7 opens up possibilities for changes that aren't necessary but nice. Like moving resource allocation/deallocation to the new OnStartUp() and OnTermination(). Like using one plot for a multicolor plot. But those aren't necessary to make your NT6.5 code work.

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  #10 (permalink)
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OK, great - that advice now sounds clear + useful for me
thanks max

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