Switch enum auto-fill
See the question and my original answer on StackOverflowI've written a free and open source extension, based on Roslyn, for Visual Studio 2015 and 2017, that not only allows to fill the switch case for an enum, but is also capable of adding new cases if enum values (fields) have been added to the enum type definition, or sort the list of cases by value or name.
It's available here: Enum Case Generator
This is how to use it: