Xamarin.Forms & CollectionView's Equivelant of IsVerticalRailEnabled

Question

In UWP, many of the scrollable controls (such as ScrollView) had a property named IsVerticalRailEnabled, which displayed sort of a skinny scrollbar. I need something similar for CollectionView in Xamarin.Forms. I could, of course, use a Custom Renderer, but I was wondering if there are any built-in ways to do something similar, or a way to customize only the scrollbar (instead of the entire CollectionView). Any ideas? Thanks!

Answer 1

Hello,​

Welcome to our Microsoft Q&A platform!

Without Custom Renderer, Xamarin forms provide VerticalScrollBarVisibility and HorizontalScrollBarVisibility to control the Scrollbar.

https://learn.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/collectionview/scrolling#scroll-bar-visibility.

VerticalScrollBarVisibility is the same as ScrollViewer.VerticalScrollBarVisibilityProperty in UWP, not the IsVerticalRailEnabled, there are no other built-in ways to control Scrollbar, Xamarin.Forms need to support three platforms, some UWP features are not existed in iOS and Android. So built-in ways may be simple.

Best Regards,

Leon Lu

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Answer 2

So the only way to get a Rail instead of a regular Scrollbar is a Custom Renderer? I guess that isn't extremely surprising, but I wanted to make sure before trying to make a complete Custom Renderer for a complete CollectionView (I was hoping to only need to do anything fancy for the Scrollbar component), since I am relatively new to both Xamarin.Forms and Android, and have written very few Custom Renderers. I may end up making the Custom Renderer at some point, but I guess it's going on the back burner for now. Maybe if we're lucky MAUI will have a nice way to do it.