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JHL1
Helper I
Helper I

Checkboxes in Nested Gallery to Collection and String output

Hi everybody,

 

I have a question regarding collections and making records from there available.

This is the overall use case:
I have a nested gallery being put together by two galleries:

1. Parent: Gallery_Category

2. Child: Gallery_Subcategory)

that result in an accordion-functionality, based on a Video by @mrdang:

Accordion Tutorial 

 

Inside the Parent-gallery(Gallery_Category) I have a single check box and inside the Child-gallery (Gallery_Subcategory) I have several checkboxes. Want I want to do and fail to achieve is the following:

OnCheck of the GalIery_Category I want to store the selected category and then I want to add to that collection item the accordingly selected subcategories from the Gallery_subcategory. 
OnUnCheck of the Gallery_Subcategory I would like to remove the unchecked Checkbox from the collection accordingly.

 

My overall goal is to use this "group" to build a dynamically generated string structured as follows:
CategorySelectedValue, SubcategorySelectedValue1, SubcategorySelectedValue2, SubcategorySelectedValue3... 

 

For the individual galleries I succeed with the following functions:

OnCheck=Collect(Coll_GalleryCategory,ThisItem)
OnUncheck= 

Remove(Coll_GalleryCategory.ThisItem)

String=
Concat(Coll_GalleryCategory,BU,", ")

This is how the PowerApps interface looks like:

PowerAppsQuestion_GalleryCollection.png

 

 

I think maybe ForAll and GroupBy needs to come into play but I really don't know where to start.
Any help is much appreciated.

Thank you and best regards
JHL

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