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Gallery with checkboxes - Uncheck property error.

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Posted on by jfloresuh

Hello,

I'm having an issue with checkboxes in a gallery. On one screen, I have a gallery with people and checkboxes. I want the user to be able to select certain people and on a separate screen, compose an email to them.

I have the OnCheck property of the checkbox set to add the person to a collection. The UncCheck property is set to remove them from the collection. This was working fine at first.

Then I added a checkbox a the top to "Select All". To do this, I just set the default of the checkbox to "SelectAll_checkbox.Value". This works as expected, but now the UnCheck property of the individual box gives me an "incompatible type" error.

Worst case scenario, I can always remove the "Select All" box, but I would prefer them to be able to select all and unselect some. Has anyone been able to accomplish something like this or know a way around it?

Thanks,

Jen

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eka24 20,923 on at

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Please what is the formula for the OnUncheck.
If it a number field you can wrap it with
Value(ColumnName)

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RandyHayes 76,297 Super User 2024 Season 1 on at

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@jfloresuh

You might want to consider a more simplistic approach to this. From your description, there is no need for the check and uncheck actions or anything else complex.

Simply have your list generate from the values of your Gallery - Concat(Filter(Gallery, Checkbox.Value), email & ";")

Then for the "Select all" just add a checkbox for that and set the default property of the checkbox in your Gallery to that checkbox value: CheckboxInGallery.Default - chkSelectAll.Value

I've attached a sample app that demonstrates this pretty easily. Download the app, go into PowerApps and open a app or create a new one. Then once in the designer, File->Open-Browse and then browse to the downloaded file.

I hope this is helpful for you.

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Community Power Pla... on at

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Hi @jfloresuh ,

I've replicated what you've done and I'm getting the same error. I've managed to work around it by storing the data in a collection first in the screen's OnVisible property with Collect(MyOriginalList,'Test List') and setting the Items property of the gallery to the new collection MyOriginalList (table data type).

Seems to work with the following values after that:

SelectAll_checkbox: OnCheck: ClearCollect(MyNewList,Gallery1.AllItems) OnUncheck: Clear(MyNewList); GalleryCheckbox: Default: SelectAll_checkbox.Value OnCheck: Collect(MyNewList,ThisItem) OnUncheck: Remove(MyNewList,ThisItem)

This should then add and remove the data from MyNewList collection as intended.

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v-bofeng-msft on at

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Hi @jfloresuh :
Do you want to implement the following functions：
1\Check box in Gallery:
OnCheck: add the item to a collection
OnUncheck:remove the item from the collection
2\The SelectAll_checkbox:
OnCheck: add all of the items to a collection and change the default property of all checkboxes to "true".
OnUncheck:clear the collection and change the default property of all checkboxes to "false".
Thanks for @Anonymous ‘s solution.
I made a similar test but didn’t encounter the "incompatible type" error.
Let me show you the solution:
Test1 is my date source
mycollection is a custom collection
Step1:Gallery:
Items: Filter(Test1,Name<>"A")                      /*you can use your rules here*/
Step2:Check box in Gallery:
OnCheck: Collect(mycollection,ThisItem)
OnUncheck: Remove(mycollection,ThisItem)
Default:SelectAll_checkbox.Value
Step3:The SelectAll_checkbox:
OnCheck: ClearCollect(mycollection, Filter(Test1,Name<>"A"))
OnUncheck: Clear(mycollection)
The point is , using the items property of the gallery instead of “Gallery1.AllItems” to fill the custom collection.

If you still have problems, could you show more detail about your Check boxes?
If you still have any question, don’t hesitate to let us know.

Beat Regards,
Bof

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RandyHayes 76,297 Super User 2024 Season 1 on at

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@jfloresuh

Are you still encountering your issue?

There have been a variety of posts here to explore. Please let us know if there are questions or if your solution has been achieved.

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jfloresuh 20 on at

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@RandyHayes Thank you, I am trying to see if I can get this to work. How do I download your app? I don't see an attachment.

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jfloresuh 20 on at

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@Anonymous I thought this was going to work because I stopped getting the error, but it is still not removing the item from the collection when unchecking the box. If I use the individual check boxes to add the item, and then uncheck it, it adds and then removes them from the collection. But if I use the select all checkbox to add them all and uncheck some of them, the uncheck does not remove them.

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RandyHayes 76,297 Super User 2024 Season 1 on at

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@jfloresuh

Hmmm, not sure why the app was no longer attached to the post.

Well, I've attached it again. Let's see if it's there and go ahead and take a look at it. I believe it will answer your questions.

jfloresuh.msapp

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jfloresuh 20 on at

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@RandyHayes This worked and it is so much simpler! Thank you!!

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RandyHayes 76,297 Super User 2024 Season 1 on at

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@jfloresuh

Yes, I thought the solution was quiet simple. I'm sorry I didn't notice that the App was not attached to the post...that would have helped you out sooner.

Happy PowerApp'ing

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