Combine filename

                            if (
                                Document.Files.Any(
                                    i => i.FileName.Equals(fileData.Name, StringComparison.OrdinalIgnoreCase)))
                            {
                                path = Path.Combine(Path.GetTempPath(),
                                    Path.GetFileNameWithoutExtension(fileData.Name) + "_" + (new Random()).Next(1, 9) +
                                    Path.GetExtension(fileData.Name));
                            }
                            else
                            {
                                path = Path.Combine(Path.GetTempPath(), fileData.Name);
                            }