Image Save

 if (fuimage.HasFile)
            {
                string[] allowed_extensions = { "jpg", "png", "gif", "bmp" };
                string[] file_extension = fuimage.PostedFile.FileName.Split('.');
                string Result = "0";
                for (var i = 0; i <= allowed_extensions.Length - 1; i++)
                {
                    if (allowed_extensions[i].ToString() == file_extension[1].ToString())
                    {
                        Result = "1";
                    }
                }
                if (Result.Equals("1"))
                {
                    // string FileName= DateTime.Now.ToString("ddMMyyyyhhmmss") + "." + file_extension[1].ToString();
                    string FileName = DateTime.Now.ToString("ddMMyyyhhmmssffff") + "." + file_extension[1].ToString();
                    // string FileName = DateTime.Now.ToString("ddMMyyyyhhmmss") + "_" + f1Big.PostedFile.FileName;
                    string Pathh = "Images/" +FileName;
                    //string Pathh = "~/imgproduct/" + FileName;
                    fuimage.SaveAs(HttpContext.Current.Server.MapPath(Pathh));
                    fuimage.Visible = true;
                    imgLogo.ImageUrl = Pathh;
                    hdnlogopath.Value = Pathh.ToString();
                   
                }
                else
                {
                    ClientScript.RegisterStartupScript(GetType(), "alert", "alert('Invalid File Please Choose jpg, png or  gif File   !');", true);
                    imgLogo.ImageUrl = "";
                    //hdnlogopath.Value = "0";
                }