I'm working on my first WPF app and I'm stuck on something that shouldn't be so difficult.Basically I've got a List (actually ObservableCollection) of strings. I've got a ListView with a GridView ...

If you're used to ListBox or LongListSelector, find out how the GridView and ListView controls for Windows Phone 8.1 can do it better. At some point, most applications need to present a list of items.