I've just started with WP 7.1. I tried the C# LocalDatabaseSample on msdn (http://msdn.microsoft.com/en-us/library/hh286405%28v=vs.92%29.aspx). I tried to modify the Listpicker (in the AddNewItem sreen) to let the user choose an item from a list. It works well when there are 3 items in the list. However, when there are about 30 items, the Listpicker goes to fullscreen mode, and it does not show the item value, but something like "LocalDatabaseSample.Model.ToDoCategory".
How do I fix this? Thanks.