public static void Load()
        {
            if (new FileInfo(Path.Combine(ParentPath, FILE_NAME)).Exists == false)
            {
                return;
            }

            TextReader textReader = new StreamReader(Path.Combine(ParentPath, FILE_NAME));

            try
            {
                var serializer = new XmlSerializer(typeof(RecentFiles));
                _instance = (RecentFiles)serializer.Deserialize(textReader);
            }
            catch (Exception)
            {
                _instance = new RecentFiles();
            }
            finally
            {
                textReader.Close();

                if (_instance == null || _instance._list == null)
                {
                    _instance = new RecentFiles();
                }
            }
        }
        public static RecentFiles GetInstance()
        {
            if (_instance == null)
            {
                _instance = new RecentFiles();
            }

            return(_instance);
        }