Enable ScrollViewer Chaining in the Sample App?

[michael-hawker]

Describe the bug

See guidance on scroll chaining here

Basically, we want to be able to continue to scroll down a page, and if a sample is using a scroll viewer to continue past that sample once it's finished scrolling as well.

Problem is this is probably not supported by the OS? 😟 See:

Because mouse wheel rotations are handled as inertial manipulations, chaining does not work.

From: https://learn.microsoft.com/en-us/uwp/api/windows.ui.xaml.controls.scrollviewer.isverticalscrollchainingenabled

Not clear if it'd be resolved by microsoft/microsoft-ui-xaml#108

Also see microsoft/microsoft-ui-xaml#7902

Steps to reproduce

1. Open Sample App
2. Look at a sample that involves scrolling (like the Header Behaviors from https://github.com/CommunityToolkit/Windows/pull/136)
3. Try scrolling down the page (i.e. with a mouse wheel)
4. You get halted at the bottom of any of the lists from scrolling.

Expected behavior

Can continue to scroll.

Screenshots

No response

Code Platform

• UWP
• WinAppSDK / WinUI 3
• Web Assembly (WASM)
• Android
• iOS
• MacOS
• Linux / GTK

Windows Build Number

• Windows 10 1809 (Build 17763)
• Windows 10 1903 (Build 18362)
• Windows 10 1909 (Build 18363)
• Windows 10 2004 (Build 19041)
• Windows 10 20H2 (Build 19042)
• Windows 10 21H1 (Build 19043)
• Windows 11 21H2 (Build 22000)
• Other (specify)

Other Windows Build number

No response

App minimum and target SDK version

• Windows 10, version 1809 (Build 17763)
• Windows 10, version 1903 (Build 18362)
• Windows 10, version 1909 (Build 18363)
• Windows 10, version 2004 (Build 19041)
• Other (specify)

Other SDK version

No response

Visual Studio Version

No response

Visual Studio Build Number

No response

Device form factor

No response

Additional context

Maybe this is something we need to investigate a helper for for now?

Related to #74

Help us help you

Yes, but only if others can assist.