Saving Uploaded files in a directory

     string physicalPath = System.Configuration.ConfigurationManager.AppSettings["PhisicalDirectory"].ToString();
     DateTime date = DateTime.Now;
     Month = date.Month.ToString();
     Year = date.Year.ToString();
     day = DateTime.Now.Day.ToString();
     string fileName = FileUploadAttach.PostedFile.FileName + DateTime.Now.ToString("yyyyddMMHHmmss");
     string savepath = physicalPath + Year + "/" + Month + "/" + day + "/" + fileName;
     FileUpload1.SaveAs(savepath);