二进制上传图片到数据库当中

HttpFileCollection Files = HttpContext.Current.Request.Files;

            //上传二进制图片
            for (int i = 0; i < Files.Count; i++)
            {
                HttpPostedFile f = Files[i];
                string fileName = System.IO.Path.GetFileName(f.FileName);
                if (fileName != "")
                {
                    //取得上传文件的大小
                    int FileLen = f.ContentLength;
                    Byte[] FileData = new Byte[FileLen];
                    //创建访问客户端上传文件的对象
                    HttpPostedFile hp = f;
                    //创建数据流对象
                    System.IO.Stream sr = f.InputStream;
                    //将图片数据放到FileData数组对象实例中，0代表数组指针的起始位置,FileLen代表指针的结束位置
                    sr.Read(FileData, 0, FileLen);

                    //将FileData 赋值给实例
                    string str=FileData;                    
                }

              }