CollectionView: ScrollTo item when setting SelectedItem

[JkPersson]

Description

Setting a selected item from the view model, I would expect the scroll view to scroll to the selected item. This is not the case. Therefore I suggest adding a new property 'SelectedItemScroll', which could be set to 'NoScroll' or 'ScrollToItem'.

• 'NoScroll' should do nothing.
• 'ScrollToItem' should scroll the selected item into view.

I would prefer the latter to be default, but since the first is similar to current functionality, it would probably be the most natural choice.

Public API Changes

<CollectionView Grid.Row="1"
    ItemsSource="{Binding Locations}"
    SelectedItem="{Binding SelectedLocation}"
    SelectionMode="Single"
    SelectedItemScroll="ScrollToItem">

<CollectionView />

Intended Use-Case

In a concrete example, I have a page with a list of locations in my app.

In another page (accessible from the flyout), I am implementing a complex search functionality.

Upon finding a specific location I would like to navigate to the location list and select the location in question.

Navigating and selecting the location works, but if the location is not in the upper part of the list, it is not visible.

[ghost]

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.