Dynamic Theme Switching in Silverlight Prism App

INTRO

In my recent consulting assignment I was asked the question by one of the developer , that how can we get dynamic theming working in Prism application.My answer was that you can implement in the same manner as you do in the standard Silverlight application. But then he further asked that there are various regions in the RegionManager and how each views loaded in the different content regions can get unified theme , this encouraged me to try this out and see how it works.I started working on it and viola my answer was correct , there is no difference in implementing dynamic theming in prism specific app. In this blog post I explain you the same. I assume that readers are already aware of Prism library. If you are not then I strongly recommend that you acquire the knowledge of the same. In my example you will see the very basics of Prism app but the library has much more to offer.

GETTING STARTED

I created a very simple PRISM application which had only one Module (ModuleA). This module is loaded on demand when you click on the menu link which is under the ShellView.The application default gets loaded in the BlueTheme but it allows you to change the theme on the fly from the Themes menu. See the screen shot below of both themes.

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