ListView GroupHeaderTemplate produces blank headers on iOS

[GV1072]

Description

1. ListView GroupHeaderTemplate produces blank headers on iOS on expandable list view.
2. This issue is working fine in Xamarin.Forms and both the platforms Android, IOS.
3. Not able to migrate to .NET Maui due to this issue as it is block issue for IOS and listview control is the key control in my project.
4. As per the below link there is an issue which is related to current issue in previous versions, but still reproducing in latest version in my scenario.
   ListView GroupHeaderTemplate produces blank headers on iOS and MacCatalyst #13076
5. Please look into this issue. I hope, and I am expecting solution in coming releases.

Steps to Reproduce

1. Create .NET Maui application with latest version. i.e. .NET 8
2. Create one page and add list view control with grouping.
3. Add one property like IsExpanded and one backup items property to show expand/collapse effect.
4. On Collapse we are clearing group items and on Expand we are adding the items to group from backup items.
5. Perform alternate expand and collapse action for the groups.
6. Observe the missing group headers on iOS and MacCatalyst.
7. On scrolling also getting same issue.

Actual Result: -
ListView GroupHeaderTemplate getting blank.

Expected Result: -

**Note: ** This issue is working fine in Xamarin.Forms and both the platforms Android, IOS.
ListViewDemo.zip

Link to public reproduction project repository

ListViewDemo.zip

Version with bug

8.0.3

Is this a regression from previous behavior?

Yes, this used to work in Xamarin.Forms

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iOS, macOS

Did you find any workaround?

No

Relevant log output

NA

[ghost]

We've added this issue to our backlog, and we will work to address it as time and resources allow. If you have any additional information or questions about this issue, please leave a comment. For additional info about issue management, please read our Triage Process.

[kimho1021]

+1

[dilipgandham]

+1

[ravi1015]

+1

I am also getting the same problem with the expandable grouping list view on both platforms (Android and iOS), missing items and not displaying headers, etc.

Please provide the fix as soon as possible, as we are waiting for the upgrade to .Net MAUI.

[Sai-Kodamati]

+1

I am experiencing the identical issue with the expandable grouping ListView on both Android and iOS platforms, including missing items and header display issues.
Kindly furnish a solution at your earliest convenience, as we eagerly anticipate the .NET MAUI upgrade.

[GV1072]

@jsuarezruiz , @samhouts I am writing to request an update on the following issue. We are currently facing challenges with the .NET MAUI migration, and we are unable to proceed further. Your prompt attention to this matter would be greatly appreciated. Additionally, any workarounds or suggestions you can provide will be of immense help.

Thank you for your assistance.