When I open any code file, whether something i’ve written or something from another developer, I want it to automatically format it with my preference of bracing, indentation, line spacing, etc..
Ideally, when saving a file to disk, it would only save the formatting for code/lines i’ve touched. It would still display the rest of the code formatted, however it would not save these to disk (so as to not piss off other developers).
You could use Resharper for this. It will show warnings for formatting inconsistencies (via colored underscores, much like warnings for spellcheckers), and you could instruct it to reformat a selection or a whole file based on either the default formatting rules or your own.
Formatting rules are customizable to fit your own coding standards.