Download code ver 1.3 from here . Many of my customers asked me: How WPF supports localization and globalization? Is there any built-in mechanism for choosing a language on-the-fly, at runtime and without closing any window? How do I translate formatted text with parameters? Well..., you know the story,... aren't you!? No? So start by reading this , and this . Still confused? continue with this and also this . As you can see, there is more than one solution. Each has its pros and cons. The WPF...