UWP apps are funny.  Unlike regular desktop apps, it’s not always obvious how to store and retrieve data.  There are two cases I’m talking about:

  • There is no Settings GUI in UWP apps like there was in WPF apps.  Previously, an Engineer could right-click on Properties in Visual Studio and set initial values for the App.
  • Writing to a file on the file system is not so straightforward.  Previously, an Engineer could call something like File.Open() and File.Write() with a path name and content string.

I’m sure these changes are related to UWP working on non-desktop platforms.  The UWP way of doing these things is covered on Microsoft’s site.