How to manually re-run indicator

[john_44573]

Hi - I have an indicator that reads data from a text file and draws lines on a chart, using the values in the text file. The lines are static once the user adds them.

The indicator works as intended when I first add it to a chart, but in order to load new data and draw new lines I have to remove the indicator and add it again.

Currently, I have the drawing portion of the code (DrawLines) run when state = State.Realtime. I tried to also add the DrawLines function to the State.Configure, thinking that the user could open the parameters, re-enter the filename and then it would run again (I thought that state triggered when the user opened and closed the UI) - but this did not work.

Initially, I had the DrawLines occurring in OnBarUpdate, and this caused the lines to be re-written over each other for each bar, generating thousands of line objects on top of each other.

What I would like is for the indicator to run once when added and then update (re-read the input file and execute DrawLines) upon a user command - after they have updated the text file and they want to add the new lines.

Thanks for any assistance.

[NinjaTrader_ChelseaB]

Hello john_44573,

I see that you are posting in NinjaTrader 7 section of the forums.

In NinjaTrader 7 there is not a State property. When historical data is being processed, the Historical bool property will be true, and in real-time the Historical bool property will be false.

Below is a link to the help guide.

https://ninjatrader.com/support/helpGuides/nt7/historical.htm

Typically, I would recommend adding a button, but this would not officially supported for NinjaTrader 7.

The LongShortToolbar buttons and ToolbarShortcut indicators may give you some hints of unsupported code you could use.

https://ninjatraderecosystem.com/user-app-share-download/long-short-toolbar-buttons/

https://ninjatraderecosystem.com/user-app-share-download/toolbar-shortcut/

You may want to consider moving to NinjaTrader 8. Adding buttons to the UserControlCollection is officially supported.

[john_44573]

Thanks for the reply, I did not realize I was in the NT 7 forum, that was by mistake. I'll report in the correct forum.

[NinjaTrader_ChelseaB]

Hello john_44573,

If this is for NinjaTrader 8, you can add a button to the UserControlCollection and trigger the actions in the button .Click event.

Below is a link to the help guide.

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

And a link to an example.

https://support.ninjatrader.com/s/article/Chart-Order-Buttons

[john_44573]

Thank you for your response and I will look at this information. I did repost in the NT8 forum and will ask follow up questions there.