Addon button for boolean variable

[slimcactus]

Is there a way to add a button to the chart window that is tied to a boolean variable that can then be used in a strategy? Basically I want to be able to enable/disable a strategy with a single click directly from the chart window. Doing so thru the strategy button requires 3 clicks and mouse movement, which at times takes too long.

[NinjaTrader_PaulH]

Hello slimcactus,

Thanks for your post and welcome to the NinjaTrader forums!

Yes, you can do that!

Below I have provided a link to an example called long and short toolbar buttons (They are actually chart buttons).

This strategy is publicly available on our NinjaTrader Ecosystem website:

• https://ninjatraderecosystem.com/use...bar-buttons-2/

Here is a basic guideline of how to import NinjaScript add-ons in NinjaTrader 8:

Note — To import NinjaScripts you will need the original .zip file.

To Import:

1. Download the NinjaScripts to your desktop, keep them in the compressed .zip file.
2. From the Control Center window select the menu Tools > Import > NinjaScript Add-on...
3. Select the downloaded .zip file
4. NinjaTrader will then confirm if the import has been successful.

Critical - Specifically for some NinjaScripts, it will prompt that you are running newer versions of @SMA, @EMA, etc. and ask if you want to replace, press 'No'

Here is a short video demonstration of the import process:

• Install a 3rd Party Indicator or App

The NinjaTrader Ecosystem website is for educational and informational purposes only and should not be considered a solicitation to buy or sell a futures contract or make any other type of investment decision. The add-ons listed on this website are not to be considered a recommendation and it is the reader's responsibility to evaluate any product, service, or company. NinjaTrader Ecosystem LLC is not responsible for the accuracy or content of any product, service or company linked to on this website.

[slimcactus]

Worked live a charm. Thank you. This is so much faster than toggling the "Enabled" button inside the strategy window, especially since NT sometimes takes 8-10s to start or stop the script. I was also able to make the button change color based on the state.

[yBl123]

can I access this indicator in strategy builder ,to check if the boolean variable is true ?

[NinjaTrader_Gaby]

Hello yBl123,

Long Short Toolbar Buttons is actually an unlocked strategy and not an indicator, so unfortunately you cannot access it via the Strategy Builder.

Please let us know if you have any further questions.

[yBl123]

is there any indicator that has buttons that you know of ? ,I think I have seen in the past ,thanks !

[NinjaTrader_Gaby]

Hello,

Yes, please see the example script linked below:

https://ninjatrader.com/support/helpguides/nt8/creating-chart-wpf-(ui)-modifi.htm

Please let us know if we can assist further.

[yBl123]

what would I need to do for these buttons to be seen in strategy builder? Thanks

[NinjaTrader_Gaby]

Hello,

Can you clarify what you mean by 'seeing the buttons in the Strategy Builder'?

Indicators will only be accessible in the Strategy Builder if the indicator contains a plot and a value is assigned to that plot. The Strategy Builder would then be able access that plot's value in the Conditions and Actions screen.

This indicator does not add any plots via AddPlot(), it's just demonstrating adding WPF modifications to a chart.

[yBl123]

is it possible to add a plot to detect if the button was on ,say a value of 1
or it would need to be a variable that cant be accessed in strategy builder ?

[NinjaTrader_Gaby]

Hello,

Please see this forum post which explains exposing indicator plot values to the Strategy Builder:

https://forum.ninjatrader.com/forum/ninjatrader-8/indicator-development/1182243-exposing-the-wavetrend-indicator-for-strategy-builder?p=1182264#post1182264

You can set a plot value when a value is clicked, and then read that as signal in a Strategy Builder strategy. This would require using TriggerCustomEvent():

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

Please see this script as an example, specifically '#region Use case 2, submitting a limit order with limit price updated to indicator plot values'.

https://forum.ninjatrader.com/forum/ninjatrader-8/indicator-development/1126570-changing-variables-within-an-indicator-from-another-indicator-with-buttons?p=1126818#post1126818

Instead of submitting an order in the TriggerCustomEvent() call, you could instead set a plot value that could then be accessed via the Strategy Builder.

Please let us know if you have any further questions.

[yBl123]

and I guess this would be able to trigger multiple strategies at the same time ? they would all be able to trigger if the plot value is 1?
because i have seen in another thread someone saying the only way to do this would be with making static variables

[NinjaTrader_Gaby]

Hello,

Each indicator will have a separate button since this is triggered by button press.

If you wanted to click a single button and have that button affect multiple strategies, yes you would have to use a static class variable.

Please note that that is not officially supported, so you would implement this at your own risk. Additionally, to implement this you would need to unlock the strategy and code it by hand, so it would not be accessible via the Strategy Builder.

Here is an example script demonstrating using a static class:

https://forum.ninjatrader.com/forum/historical-beta-archive/version-8-beta/83018-partial-class-does-not-work?p=712245#post712245

If you have any further questions please let us know.

[yBl123]

I am confused ,how will one strategy have access to this indicator and not any other strategy ?
how will the button press be affecting only one strategy ? and if if only 1 which one ?

[NinjaTrader_Gaby]

Hello,

Every strategy that uses an instance of the indicator only has access to that specific instance of the indicator. Each instance of the indicator has its own button, so the button press will only affect the strategy that is using that indicator instance.

Please let me know if I can clarify further.