public enum Types
            {   
                [Description("Действие")]
                Action,
                [Description("Отчет")]
                Report,
                [Description("Справочник")]
                Book
            }
        public static explicit operator Types(string s)
        {
            switch (s)
            {
                case "Report":
                    return Types.Report;
                case "Book":
                    return Types.Book;
            }
            return Types.Action;
        }
        public static explicit operator string(Types t)
        {
           switch (t)
            {
                case Types.Report:
                    return "Report";
                case Types.Book:
                      return "Book";
            }
            return "Action";
        }