Most of the time, the 'Move to Resource' feature prompts to save or overwrite the .Designer.cs file. I can't figure out why or how to prevent it. With thousands of strings to extract, this extra click is wasting a lot of time.
The following dialog appears:
Conflicting Modifications Detected
The file Resources.Designer.cs has changed since you opened it. Would you like to save the version you have open over the changes on disk?
Save As... Overwrite (and 3 more buttons)
Note: on the Move to Resource dialog:
"Find identical items" is checked.
"To enable Undo, open all files" is checked.
Visual Studio 11.0.60610.1