CODEWITHSUNDEEP
c#mvvmwindows-runtimewindows-store-appswinrt-xaml
Richard Cook
Richard Cook

Reputation: 33089

How do I control the scroll position of a ListView in an MVVM WinRT/XAML Windows Store app?

This is a similar question to that posed in How to control the scroll position of a ListBox in a MVVM WPF app but, instead, I'm trying to achieve a similar effect from within a Windows Store app: I would like to know how to scroll a ListView to the current (or an arbitrary) item from the view model in an MVVM-style app.

There are a couple of limitations in WinRT when compared to WPF:

Fortunately, the CollectionViewSource problem is elegantly solved by Bernardo Castilho's solution at CodeProject (http://www.codeproject.com/Articles/527686/A-WinRT-CollectionView-class-with-Filtering-and-So). Unfortunately, the lack of support for IsSynchronizedWithCurrentItem makes solving the remainder of the problem tricky.

There are already several similar questions (e.g. Windows 8 Metro style ListView auto scroll) but they don't address the problem from an MVVM perspective and don't allow me to maintain a clean MVVM architecture with a minimum of code-behind in my project.

Upvotes: 1

Views: 3100

Answers (1)

Filip Skakun
Filip Skakun

Reputation: 31724

You can check ListViewExtensions.ItemToBringIntoView attached property from the WinRT XAML Toolkit, which should work similar to how you would bind the SelectedItem property but it will bring an item into view instead.

Upvotes: 1

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