need to apply Update() on properties

[junkone]

I have been using this indicator for many years and found out today that the properties is not automatically showing correct value in multitimeframe strategies when i apply the firsttickofbar.
i had to fix it by adding a Update() before the property returned values.
i notice that none of the indicators provided by NT actually uses this function.
can someone clarify why Update() makes a difference as i am wondering if i should apply this to all my indicators

[NinjaTrader_Emily]

Hello junkone,

Thank you for your post.

Update() is only needed for certain use cases. In the case of a hosted indicator, like when you use this indicator in a strategy, the indicator needs to be accessed in one of three ways to make sure that OnBarUpdate() functions as expected. The three ways are:

1. Call Update() on the hosted indicator within the host script
2. Include a plot in the hosted indicator and access the plot in the host script
3. Include a plot in the hosted indicator and add the indicator to a chart with AddChartIndicator() (this applies to strategies only)

This information is explained in the "Notes" section of the OnBarUpdate() page here:

• https://ninjatrader.com/support/help...nbarupdate.htm

For more information regarding Update():

• https://ninjatrader.com/support/help...nt8/update.htm

Here is a reference sample that exposes an indicator value that is not a plot:

• https://ninjatrader.com/support/help...alues_that.htm
  • See the ExposedVariable in the SampleBoolSeries.cs indicator script - Update() is called in the Properties region to ensure the exposed variable is up-to-date when accessed in a host script, such as the SampleBoolSeriesStrategy.cs strategy.

Hopefully this helps to clarify the specific use cases where Update() is needed. Please feel free to reach out with any additional questions or concerns.