private static void GlobalResourceContextChanged(object sender, IMapChangedEventArgs<string> e)
{
Debug.Assert(s_globalResourceContextFallBackList != null);
Debug.Assert(s_globalResourceContext != null);
List<String> languages = new List<string>(s_globalResourceContext.Languages);
s_globalResourceContextBestFitCultureInfo = GetBestFitCultureFromLanguageList(languages);
s_globalResourceContextFallBackList = ReadOnlyListToString(languages);
}