How to develop your windows phone 8 app as support multiple language (Localized)
Create new project in windows phone 8
Now you can see the default Localized string (US English) shown below
It is the default language (US English) in your Windows phone application. Now we are going to add new language’s as our need
Go to properties and select the languages as your wish like shown below
After selecting the language you can check the resource folder new app resource file will be created automatically as shown below
Now Run your application and follow the below steps
Go to Settings select - select “language+region” - as shown below
In that Select Phone language as what you selected in supported language and finally restart the emulator as shown below.
Now check your application it’s automatically changed the supported language.