public static void AddDataFolder(DataFolder dataFolder)
        {
            if (dataFolder == null)
                return;

            if (!_dataFolderList.Contains(dataFolder))
                _dataFolderList.Add(dataFolder);
        }
 /// <summary>
 /// Constructor.
 /// </summary>
 static DataFolders()
 {
     var customSection = ConfigurationManager.GetSection(CustomConfigurationSection.SectionName) as CustomConfigurationSection;
     if (customSection != null)
     {
         foreach (DataFolderElement dataFolderElement in customSection.DataFolders)
         {
             var dataFolder = new DataFolder() { Name = dataFolderElement.Name, Path = dataFolderElement.Path };
             AddDataFolder(dataFolder);
         }
     }
 }