in case there are no other solutions, I’ve just created an idea for this function to be added to NAC

Add currentRowNumber function to NAC forms | Nintex Ideas

Please up vote 

This post gets you part of the way there, but will only display the same total number of rows in each  row ID field in the repeating section.

365 Repeating section - how to capture each row number into the repeating section row | Community (nintex.com)

@Gavin-Adams  Just confirming, you’re looking for something like this?

@bsikes yes that is what I’m after.

Thanks,

Gavin

Here’s what the repeating section looks like:

The approach I went with is basically this:

1. Use the convertToString function to convert the repeating section to a string.
2. Use the replace function to remove everything after the current row from that string
3. Use the replace function to remove everything from that string except a specific character that should only be present in each row once.
4. Count the resulting string, which should correspond to the current row number.

"Preference " + 
convertToString(
	length(
		replace(replace(convertToString(gForm].]Repeating section 1]),"(.*" + +Form].]Repeating section 1].]Current row].]GUIDLabel] + "\"}).*","$1"),".(?!UniqueRecord)","")
		)
	) 

The trick with step 2 is that you need some way to identify what the current row is amongst the whole repeating section. I found that using the newGuidAsString() function accomplishes this well, in that it creates a unique value in a row, that you can reference from within the CurrentRow context. To do this, I have a form rule that when a new row is added, will set a hidden short-text field using this formula: "UniqueRecord" + newGuidAsString()

I’m then able to use a regular expression to remove everything after the current row, using the value from the current row’s GUIDLabel field to actually identify where that cutoff is.  The reason for me putting “UniqueRecord” in the field is for step 3.

In step 3, I remove any character that isn’t followed by “UniqueRecord”, which should give me a string that I can count the length of. 

Let me know if there’s any questions on that. It would be handy if there was just a built in variable for the CurrentRow context that could be referenced. 

wow @bsikes that’s some impressive function building.

A lot or work just to get the current row.

Really need Nintex to update NAC repeating section functionality to match what they have had in on-premise Nintex forms for over 10 years.

@marcusplatt just for your attention around adding a currentRow function to NAC forms.

Link to Nintex idea in the comments above.

Hello @Gavin-Adams, thank you for your feedback and the valuable discussion here. We have now introduced a new current row number variable for repeating sections. The current row number variable is accessible from the the Repeating Sections object variable > Current row > Row number.

Please reference help documentation here for more information: https://help.nintex.com/en-us/nwc/Content/Designer/FormControls/Repeatingsection.htm 

And in Community: 

We value your feedback - please let us know any questions and comments. 

Thank you,

Tom on behalf of the Nintex Product Team