CollectionView GroupHeaderTemplate controls inside incorrectly show/hide after reusing dataTemplate

[DmitryNikiforovCoherent]

Description

I have grouped collectionview(group header is expandable). When header is not expanded, it should have border(use BoxView for it) and hide it, when expand. When header item is reused, BoxView can be hidden, even if should be shown

Steps to Reproduce

<CollectionView IsGrouped="True" ItemsSource="{Binding Items}" ItemTemplate="{StaticResource ItemSelector}" GroupHeaderTemplate="{StaticResource ExpanderTemplate}"/> <DataTemplate x:Key="ExpanderTemplate" x:DataType="activity:Group"> <Grid Padding="24,8" RowDefinitions="40,1" ColumnDefinitions="Auto,*,Auto" BackgroundColor="{StaticResource Global-Colors-DX-White}"> .. Content... <BoxView Grid.Row="1" Grid.ColumnSpan="3" IsVisible="{Binding BorderVisible}" BackgroundColor="{StaticResource Global-Colors-DX-Light-Gray}"/> </Grid> </DataTemplate>

Link to public reproduction project repository

No response

Version with bug

8.0.92 SR9.2

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iOS 17.5

Did you find any workaround?

No response

Relevant log output

[dotnet-policy-service]

Hi @DmitryNikiforovCoherent. We have added the "s/needs-repro" label to this issue, which indicates that we require steps and sample code to reproduce the issue before we can take further action. Please try to create a minimal sample project/solution or code samples which reproduce the issue, ideally as a GitHub repo that we can clone. See more details about creating repros here: https://github.com/dotnet/maui/blob/main/.github/repro.md

This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[dotnet-policy-service]

This issue has been automatically marked as stale because it has been marked as requiring author feedback to reproduce the issue but has not had any activity for 4 days. It will be closed if no further activity occurs within 3 days of this comment. If it is closed, feel free to comment when you are able to provide the additional information and we will re-investigate.