Due to the relatively small screen size of the phone, it can be awkward displaying a large number of options to the user without resorting to the use of a second page. At development time, you may not know the number of options that will be displayed, making the choice of using an in-place selection mechanism such as a
ListBox or a dedicated option selection page difficult. Moreover, navigating to a page to retrieve a response from a user is cumbersome and entails handling navigation events and so forth.
ListPicker solves this problem by enabling the user to select from a list of options, either with an expandable in-place picker (if the number of items is small) or with a full-screen ...