[Bug] CollectionView ItemsUpdatingScrollMode=KeepLastItemInView not working on UWP

[Estevete]

Description

ItemsUpdatingScrollMode=KeepLastItemInView seems to not work on UWP but works fine on android & iOS.

Steps to Reproduce

1. Create CollectionView and a button to add items into it
2. Run on UWP
3. Tap on add until items reach bottom of collection view
4. Observe that new items aren't scrolled to automatically.

Expected Behavior

Items scrolled to if added on end.

Actual Behavior

Items are added but collectionview isn't scrolled automatically.

Basic Information

• Version with issue: 4.4.0.991265
• Last known good version: Doesn't work on 4.3 either
• IDE: Visual Studio 2019 16.4.2
• Platform Target Frameworks:
  • UWP: 18362
• Android Support Library Version:
• Nuget Packages: No unusual ones
• Affected Devices: Windows PC

[yurii-harkusha]

Hi, I see the same for IOS. Please fix it.

[Estevete]

#7788

Hi, I see the same for IOS. Please fix it.

[edmlbox]

still not working

[ederbond]

Still not working on iOS @davidortinau, @pauldipietro @rmarinho

[tarunagrawal1990]

Still not working on UWP. XF version - 4.7.0.1080.
Any update on this issue

[jamsoft]

Hmm ... this is still scrolling to the added items on iOS as well (XF 5.0.0.2012). A CarouselView, do they share any parts of their renderer? There is an old closed issue for this on the CarouselView, but it was apparently fixed and merged.

<CarouselView Margin="-1,-1,0,0"
                          ItemTemplate="{StaticResource MySectionDataTemplateSelector}"
                          ItemsLayout="VerticalList"
                          ItemsSource="{Binding Sections}"
                          ItemsUpdatingScrollMode="KeepItemsInView"
                          VerticalOptions="FillAndExpand" />

Possibly a regression? This works as expected on Android.

[burrowj]

This is not working for me either on IOS
Xamarin.Forms Version="5.0.0.2012"

[andersonvieiragomeslopes]

Description

ItemsUpdatingScrollMode=KeepLastItemInView seems to not work on UWP but works fine on android & iOS.

Steps to Reproduce

1. Create CollectionView and a button to add items into it
2. Run on UWP
3. Tap on add until items reach bottom of collection view
4. Observe that new items aren't scrolled to automatically.

Expected Behavior

Items scrolled to if added on end.

Actual Behavior

Items are added but collectionview isn't scrolled automatically.

Basic Information

• Version with issue: 4.4.0.991265

• Last known good version: Doesn't work on 4.3 either

• IDE: Visual Studio 2019 16.4.2

• Platform Target Frameworks:

  • UWP: 18362

• Android Support Library Version:

• Nuget Packages: No unusual ones

• Affected Devices: Windows PC

I solved this problem now in maui, the same solution also applies to xamarin.