I use a gallery for temporary collection of production-articles. I need the cumulative sum per article started on the top of the gallery and end with the actual element.
I know how to setup a position no. but this is not automatically updated when sorting other way:http://powerappsguide.com/blog/post/generating-row-numbers
the position number/id should be always the number you can see on the screen and it should not matter how to sort the rows.
gallery asc-sorted by 'used qty' and automatically actualized position:
and same desc-sorted by 'used qty' and automatically actualized position:
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