Is there a shortcut to surround a given (selected) code block with curly braces?
VS 2015 + R# 2016.1
As an as an alternative to Patrick's answer (Ctrl+E, U, 7) you could also use the extended Alt+Enter -menu of ReSharper 9+.
Alt+Enter, UP, UP, Enter, or
Alt+Enter, "bl", Enter
Unfortunately, I don't know a way to bind this to a shorter hotkey.
But if this is really important to you, you could try AutoHotkey.