System.IO.FileHandling.SaveTempFile C# (CSharp) Méthode

        public static string SaveTempFile(string originalFilePath)
        {
            if (string.IsNullOrEmpty(originalFilePath))
                throw new ArgumentNullException("originalFilePath");

            string newFilePath = null;
            if (File.Exists(originalFilePath))
            {
                newFilePath = Path.GetDirectoryName(originalFilePath) + "/" + Path.GetFileNameWithoutExtension(originalFilePath) + ".temp";
                File.Copy(originalFilePath, newFilePath, true);
            }

            return newFilePath;
        }