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power apps issue with modern controls checkbox in gallery not showing checked

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Posted on by RW-03041126-0

I've noticed some strange behavior with (modern controls) checkboxes in a gallery recently (it used to work without problems).

When there is a Checkbox (modern controls variant) in a gallery (modern or classic galleries seems to have the same issues), the checkbox is not visually checked when the Checked property is set true (by ThisItem.Checked (a boolean value)). A Classic checkbox is showing the correct checked or unchecked state when the Default property is true or false.

I've made a test app with two tables a nfTblParents and a nfTblChild table.

The parents table is shown in the parent gallery, when an item is selected in the parent gallery, the corresponding childs are shown in the child gallery. In the child gallery, there are two checkbox controls. A classic and a modern control checkbox.

The classic checkbox shows checked and unchecked correctly depending of the 'Default' property value, (Code for the Default property: ThisItem.Checked ).

The modern control checkbox shows always unchecked (with the same boolean value for the 'Checked' property), (Code for the modern checkbox Checked property: ThisItem.Checked ).

The ThisItem,Checked value is a boolean column in the nfTblChild table.

When a checked (or unchecked) child is selected in the child gallery, in the bottom of the screen both the classic and modern control checkbox are showing the correct state.

I've noticed this behavior recently (since end of April), in the past it was working correctly. Is this a known issue? Is there something wrong in my app or environment or something else?

I've attached my checkbox test app and a screenshot showing this behavior.

Any suggestions?

Thanks in advance!

Rob

Categories:

Power Apps Pro Dev & ISV

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CheckBoxTest.msapp

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YD-22100952-0 29 on at

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I am having the same problem. Modern checkbox and form are not working properly. I realized the problem today.

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MS.Ragavendar 4,977 Super User 2025 Season 2 on at

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@RW-03041126-0,

This is the backend structure.

Values

UI

Modern

Classic

🏷️ Please tag me @MS.Ragavendar if you still have any queries related to the solution or issue persists.

✅ Please click Accept as solution if my post helped you solve your issue and help others who will face the similar issue in future.

❤️ Please consider giving it a Like, If the approach was useful in other ways.

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BCBuizer 22,505 Super User 2025 Season 2 on at

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Hi!

Other people are reporting similar issues and suggest to change authoring versions to work around the issue: Modern Component Errors

If this reply helped you in any way, please give it a Like 💜 and in case it resolved your issue, please mark it as the Verified Answer ✅.

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CU06051654-0 7 on at

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This would appear to be related to recent Release 3.25043.12

- I attempted to change the App to use different Check Box (Classic and Input) and the results were the same
- An Entry Form with a Classic Check Box is working fine on the new Release - seems to be specific to Gallery Check Box
- The Gallery Check Box (StoryComit) value is used to set the FILL on other Text Input fields and that works fine - but check box is not displayed as checked i.e. If( StoryComit.Checked, DisplayMode.View, DisplayMode.Edit )
- The processing associated with the Gallery Input Checkbox (OnCheck and OnUncheck) is working fine

- The current published App version is working fine under Release 3.25042.10.

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ALChenow 2 on at

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Does anyone know if there is an update on this error? When I first add in the code for the "checked" property, it displays correctly, but once the gallery re-sorts (it filters based on user inputs), all the checkboxes are empty. I have a text control in the gallery itself that displays a "1" or "0" based on the value of the checkbox (1 if true, and 0 if false), and it shows that the checkbox values are correct (e.g., if it's supposed to be true, there is a "1" in the text control), yet there is no fill / checkmark in the box itself.

Thanks,

Andy

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