public static void ResetCachedFileTimes() { ApplicationDataCompositeValue cachedFileTimes = null; var localSettings = ApplicationData.Current.LocalSettings; if (localSettings.Values.ContainsKey(CachedFileTimeName)) { try { cachedFileTimes = (ApplicationDataCompositeValue)localSettings.Values[CachedFileTimeName]; cachedFileTimes.Clear(); localSettings.Values[CachedFileTimeName] = cachedFileTimes; } catch (Exception) { } } }