Bloom.Collection.BookCollection.WatcherOnChange C# (CSharp) Method

        private void WatcherOnChange(object sender, FileSystemEventArgs fileSystemEventArgs)
        {
            if (_watcherIsDisabled)
                return;
            _bookInfos = null; // Possibly obsolete; next request will update it.
            if (FolderContentChanged != null)
                FolderContentChanged(this, new ProjectChangedEventArgs() { Path = fileSystemEventArgs.FullPath });
        }