private static void LoadCategoryMap() { FileExtensionToCategoryMap = new Dictionary <string, string>(); HashSet <string> Categories = new HashSet <string>(); ConfigSettings[] extensionList = ConfigFileUtil.LoadConfigFile(ConfigFiles.GetCategoriesFile()); foreach (ConfigSettings settings in extensionList) { FileExtensionToCategoryMap.Add(settings.Value.ToLower(), settings.Category); Categories.Add(settings.Category); } Console.WriteLine(" Loaded {0} file extensions in {1} categories\n", FileExtensionToCategoryMap.Count, Categories.Count); }