How to do all the things to a Collection - Sorting, Filtering, Updating, Grouping

Issue type

sample request

Which version of the app?

WinUI 3 Gallery

Description

Especially for the new ItemsView, but even just for ListView, there's not a full-fledged example anywhere of how to take a large collection of items and performantly sort, filter, update, and group them within a UI container.

In WPF, CollectionViewSource did a lot of heavy lifting here, but there's a gap for the platform still on this: https://github.com/microsoft/microsoft-ui-xaml/issues/4307

So, even more so, a sample that shows how to do this that's production ready would be appreciated.

The doc on filtering that do exist, seems woefully inefficient or error-prone compared to the simplicity of setting the Filter from WPF days: https://learn.microsoft.com/dotnet/desktop/wpf/data/how-to-filter-data-in-a-view

Screenshots

No response

Windows version

No response

Additional context

No response

Start by reviewing the existing ListView filtering documentation and the ItemsView and ListView examples in WinUI Gallery, then compare the linked WPF CollectionViewSource guidance. Done means a production-ready sample demonstrates performant sorting, filtering, updating, and grouping of a large collection within a UI container.