Change theme at runtime

Question

I have a WPF application with a theme (ShinyRed.xaml) and I want to have a button that when clicked changes the theme to ShinyBlue.xaml

I load in the theme initially

Answer 1

App.xaml

In your code:

> Application.Current.Resources.MergedDictionaries[1].Source = new Uri("Themes/Dark.xaml", UriKind.RelativeOrAbsolute);

you can check with this to be sure nothing grow

Application.Current.Resources.MergedDictionaries.Count.ToString();