public async Task <string[]> GetAllLines()
        {
            var result = new List <string>();
            await Task.Run(() =>
            {
                var info = Info;
                if (info != null)
                {
                    var list    = new ConcurrentBag <DividedFile>();
                    var fileNUM = info.FileNames.Count;
                    Parallel.For(
                        0, fileNUM, i =>
                    {
                        var dividedFile = new DividedFile(i);
                        var filePath    = Path.Combine(InfoFileDirectory, info.FileNames[i]);
                        dividedFile.LoadAllLines(filePath);
                        list.Add(dividedFile);
                    }
                        );
                    if (list.Count > 0)
                    {
                        var array = list.OrderBy(e => e.Id).ToArray();
                        foreach (var file in array)
                        {
                            foreach (var line in file.Lines)
                            {
                                result.Add(line);
                            }
                        }
                    }
                }
            });

            return(result.ToArray());
        }