any further feedback on the tabview issue? Is the team still investigating root cause?
We are stuck on 9.0.22 until this gets fixed :( Would be great if we can get the other bug fixes that have been made to Maui.Controls since then 🙏

Hi Didi,

I’ll open a ticket and log a separate issue with your team shortly.

Thanks,
Zelin

However, I discovered additional issues, such as the tab content not updating when clicking on the tab header. For example, if a CollectionView is inside, the tab content appears to get stuck.

I tested it with the latest MAUI 9.0.40, and the issue appears to be resolved.

The issue also goes away if you don't wrap the TabbedPage child in a Navigation page. Unfortunately we need navigation page parent.

if it helps - attached a sample project using a tabbedpage.
Interestingly the tabbed first page has the scroll issue, but the second tabbed page does not 🤷‍♂️

Since the timeline for fixing this issue is uncertain. Currently, to work around the freezing issue, I have to implement a custom TabView to replace RadTabView temporarily. Once the issue is resolved, I need to remember to switch back.

Hello, any update for this bug?

I'm still using the workaround of nesting the CollectionView into a ScrollView to prevent virtualization and make it work in iOS, is not the best solution and makes CollectionView loses it owns scrolling abilites but at least it doesn't freeze. For now, CollectionView from Telerik inside a TabView is useless. 

I think this is a very important bug. There are many of us using the TabView. Right now, I would have to spend a lot of time redoing our app

You can work around it by wrapping it in a scrollview and then in order to get swipe to work you can customize the iOS ScrollView handler to recognize simultaneous actions - BUT the rendering performance goes from bad to absolutely abysmal - not nearly good enough to be able to release to customers.

Also - this was not an issue for .NET 8 - but now happens with .NET 9?

This is a critical issue - we cannot release our app with a CollecionView that is broken in this way :(

Hello Didi,

We're having the same issue. In our case to make the TabView unreactive is a stack layout embedded in a scroll view inside a TabView. No other scrollable items in the view.
This means that we're not able to scroll vertically the tab view content. Meanwhile this bug is fixed, can you please provide a workaround that provide scrolling?

 

Thanks.
Regards.
Edoardo.

Hello Didi,

Applying that approach setting a definitive height to the CollectionView when is inside a ScrollView that is in a TabView gets in the same result of freezing when scrolling.

I found a workaround for this:

Nest CollectionView into a ScrollView, this will make the CollectionView use the scroll ability from ScrollView and not itself which is the one is wrong. Of course this is not a perfect approach but worked in my case.

The bad news is that using a ScrollView, the CollectionView control can't have scroll features like Swipe and I think Drag N Drop. For my app I'm using swipe and I had to disable swipe feature from CollectionView, otherwise ScrollView's scroll won't work. To keep swipe working meanwhile Telerik solve this bug, I used a SwipeView for my item template and it is working.

The Telerik team is deprecating the RadListView: Link. Perhaps we should wait for it to be fixed. From my experience, the performance of using RadCollectionView is significantly better than that of RadListView.

I'm experiencing the same problem and couldn't find a solution or workaround so far. ListView was working better than this.