Hello,
I am having a hard time trying to understand how nested collections work in PowerApps. I have a very nested collection and want to extract information and display it in the gallery. I looked around on the internet but I only found basic examples of how to extract data.
This is how my collection looks like:
ClearCollect(NestedListExample, {List01:{List01A: {List01AA: {List01AAA:{List01AAAA: "Book_ID01"}}, List01C: "Random"}, List01B: "ABC"}, List02: "Random info", List03: "Random info"}, {List01:{List01A: {List01AA: {List01AAA:{List01AAAA: "Book_ID02"}}, List01C: "Random"}, List01B: "ABC"}, List02: "Random info", List03: "Random info"},{List01:{List01A: {List01AA: {List01AAA:{List01AAAA: "Book_ID03"}}, List01C: "Random"}, List01B: "RRR"}, List02: "Random info", List03: "Random info"},{List01:{List01A: {List01AA: {List01AAA:{List01AAAA: "Book_ID04"}}, List01C: "Random"}, List01B: "ABC"}, List02: "Random info", List03: "Random info"})
level01
level02
level03
level04
level5
If this makes sense, I want to display all the List01AAA items IF List01B== “ABC” in a gallery.
Any examples on how to extract information at different levels from nested collections would be helpful :).
Thank you
Solved! Go to Solution.
Hi @VP200 ,
Do you want to display all the List01AAA items in a Gallery when the List01B== “ABC”?
I have made a test on my side, please take a try with the following workaround:
Add a Gallery control within your app, set the Items property to following formula:
ForAll( Filter(NestedListExample, List01.List01B = "ABC"), List01.List01A.List01AA.List01AAA )
Add a Label control within above Gallery, set the Text property to following:
ThisItem.List01AAAA
Please consider take a try with above solution, check if the issue is solved.
More details about the ForAll function, please check the following article:
Best regards,
Hi @VP200
Not sure why this complex nested structure
but try this on button click or something
ClearCollect(colNested2, Filter(NestedListExample.List01,List01.List01B ="ABC"));ClearCollect(colNestedFinal,ForAll(colNested2.List01,List01.List01A.List01AA.List01AAA))
This will give you colNestedFinal which you can use in Gallery
Regards,
Reza Dorrani
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly
Hi @VP200 ,
Do you want to display all the List01AAA items in a Gallery when the List01B== “ABC”?
I have made a test on my side, please take a try with the following workaround:
Add a Gallery control within your app, set the Items property to following formula:
ForAll( Filter(NestedListExample, List01.List01B = "ABC"), List01.List01A.List01AA.List01AAA )
Add a Label control within above Gallery, set the Text property to following:
ThisItem.List01AAAA
Please consider take a try with above solution, check if the issue is solved.
More details about the ForAll function, please check the following article:
Best regards,
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