Carousel Item Wrongly showed other Section of Carousel While Swipe down on RefreshView

[UdayaDevConsole]

Hi .. I am Uday Carousel View Working Fine on Both device i just Display the Section Based Content in Carousel inner of CollectionView When try to Refresh the Collection View it content wrongly showed other section of carousel view it updated Proper content after Few Second

[UdayaDevConsole]

[UdayaDevConsole]

[AndreiMisiukevich]

Hello Uday, unfortunately, I can't help you without a reproduction sample and video.

[UdayaDevConsole]

Hi @AndreiMisiukevich ... Here i Attached Reference Image . i showed Multiple Carousel in Single Page. It Properly Showed Under Section But Frame Content Wrongly Showed Other Section Content When i Refresh the Collection View After Few Second it Properly Showed.. The Issue Was Only on Xamarin IOS.. i also tried IsViewReusingEnabled="False" This is also Not Working For Ios

Expectation : Content Show Proper Under Section When We Refresh the View on CollectionView

[UdayaDevConsole]

@AndreiMisiukevich Also It Working Fine on Emulator and simulator But Issue on Deployment

[AndreiMisiukevich]

Hm, that's weird. If it works fine on iOS simulator then it should on real Device.

Can it be some Xamarin bug? Can you try to run the app on real device with linter disabled?

[AndreiMisiukevich]

Looks like collection view reorders items for a while. We don't control this process from collection view

[UdayaDevConsole]

so how to cache clear on collectionView

[AndreiMisiukevich]

I propose to fully recreate items source

[UdayaDevConsole]

Sorry .i couldn't understood . Can u explain briefly?

[UdayaDevConsole]

While Refresh the View What i do to ? i am Using Observable Collection for DataBinding CollView.ItemSource = RefreshData.ToList()

[AndreiMisiukevich]

What is inside RefreshData? Views or just items?

I mean, do you use ItemTemplate? Or add views directly to itemssource?

Also, you can try something so hacky.

Using code behind, remove your collection view from page and then add it again (on refresh). Or optionally recreate a new instance of collection view

[UdayaDevConsole]

i am using item Template and Data assign Using itemsource directly from c# Like below Mentioned XAML :

<StackLayout>
   <RefreshView>
      <CollectionView x:Name="CollView">
         <CollectionView.ItemTemplate>
           <DataTemplate>
               <cards:CarouselView>
                  <cards:CarouselView.ItemTemplate>
                    <DataTemplate>
                       <Frame/>
                    </DataTemplate>
                  </cards:CarouselView.ItemTemplate>
               </cards:CarouselView>
          </DataTemplate>
      </CollectionView.ItemTemplate>
   </CollectionView>
  </RefreshView>
</StackLayout>

C# : CollView.ItemSource = RefreshData.ToList()

[UdayaDevConsole]

@AndreiMisiukevich can u have sample for ",remove your collection view from page and then add it again (on refresh). Or optionally recreate a new instance of collection view" ?

[UdayaDevConsole]

Hi @AndreiMisiukevich i think its not collection view problem because Issue When i Scrolldown to bottom these way also occur same issue something wrong on carousel

[AndreiMisiukevich]

@UdayaDevConsole https://github.com/xamarin/Xamarin.Forms/issues/13045 it can be collectionview recycling issue Try to change collectionview to listview and set strategy to retain element instead recycling