I have a WPF application (in English) and I would like to let users to select different languages. I have read some possibilities to change languages in runtime applications
If you want to use RESX files instead of resource dictionaries, you can do it easily with static references in XAML.
In the Resource folder is the MainWindow.resx, MainWindow.de.resx, etc. and every file contains a key MyTestKey with a translation.
Resource
MainWindow.resx
MainWindow.de.resx
MyTestKey