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GroupBy Galleries need to collect IDs of nested galleries for a patch.

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Posted on by AmyF

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Okay, I've got a GroupBy gallery and nested child situation. I have checkboxes on the children and a checkbox on the parent to "check all" the child boxes in that selected nested gallery.

I can collect the IDs only if they physically check the child checkboxes. On the OnSelect of the Parent CheckAll I set a variable on and that variable supplies the value to the child checkbox from the checkAll to check the child on or off accordingly. That works fine. But I don't know how to "fire" each child's OnCheck routine based on the Parent's checkAll checkbox. IF setting on all the child checkboxes to true actually fired the Children's OnCheck I'm sure it would work but that is not the case.

So any ideas how to manually fire a checkbox's OnChecked? I'm thinking not but I have to ask... I'm so close.

Thanks in advance.

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Building Power Apps

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BCBuizer 22,565 Super User 2026 Season 1 on at

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Hi @AmyF ,

Instead of using the OnSelect property, why not use a nested ForAll function to gather all items that have their checkbox value set to true?

For instance:

Clear(colSelectedItems); ForAll( ParentGallery.AllItems, ForAll( ChildGallery.AllItems, If( ThisRecord.Checkbox1, Collect( colSelectedItems, ThisRecord ) ) ) );

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AmyF 235 on at

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Thank you so much, I actually got to this answer last night but it's good to have the confirmation to anchor what I think I know. 🙂 Cheers, (I have one last problem, I hope it's my last) I'll post the link back when I post it. It deserves its own post. Thanks again.

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AmyF 235 on at

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I cc'd you into my next post. cheers, sir.

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