Have you ever tried to reuse code by adding existing files to a project? In Visual Studio this usually works, with the file getting put into the right location, associating the editor based on the file extension. I’ve been working on a Xamarin Forms project which allows me to use XAML to create the UI and C# for the code behind. This enables me to leverage my skills and experience building Windows and Windows Phone applications on iOS and Android. The problem came when I would include an existing ......