Localized string resources is saved in AppResources.resx
. And it is used in design time as well as in run time.
You can edit the .resx
file in VS to add localized string values :
Practical reason for separating the resources in .resx
file is, you can add string resources for other locale by simply adding another .resx
file with corresponding culture info code suffix.
Further reference : How to build a localized app for Windows Phone 8