file.SaveAs(file_save_path);	//save upload photo file	

                                    //using (StreamReader sr = new StreamReader((System.IO.Stream)File.OpenRead(file_save_path), Encoding.UTF8, true))

                                    //using (StreamReader sr = new StreamReader((System.IO.Stream)File.OpenRead(file_save_path), GetFileEncodeType(file_save_path), true))

                                    

                                    using (StreamReader sr = new StreamReader(file_save_path, GetFileEncodeType(file_save_path)))

                                    {                                            

                                        file_content = sr.ReadToEnd();

                                        sr.Close();

                                        sr.Dispose();

                                    }