ASP.NET(C#)上傳圖片(二進位)

此方法適合ASP.NET(C#)＋Oracle
Oracle 表中欄位類型為Blob
#region 上傳檔案(二進位)
        //
        static public Byte[] FileToBinary(FileUpload hifile)
        {
            try
            {
                if (hifile.HasFile)
                {
                    if (IsAllowedExtension(hifile))
                    {
                        //取得上傳檔案的大小
                        int FileLen = hifile.PostedFile.ContentLength;

                        Byte[] FileData = new Byte[FileLen];

                        //建立訪問用戶端上傳檔案的對象
                        HttpPostedFile hp = hifile.PostedFile;

                        //建立資料流對象
                        Stream sr = hp.InputStream;

                        //將圖片資料放到FileData數組對象執行個體中，0代表數組指標的起始位置,FileLen代表指標的結束位置
                        sr.Read(FileData, 0, FileLen);

                        //string id = "0";
                        //BLL.Picture.AddPictures(id,"name",Convert.ToString(FileData),"url","說明");

                        return FileData;//返回二進位檔案流 只要把它存入資料庫即可

                    }
                    else
                    {
                        //Response.Write("<script languge = ‘javascript‘ type = ‘text/javascript‘>alert(‘上傳檔案格式不對,只允許上傳jpg和gif格式的檔案‘);</script>");
                        return null;// "上傳檔案格式不對,只允許上傳jpg和gif格式的檔案";
                    }
                }
                else
                {
                    return null;// "請選擇上傳檔案";
                    //Response.Write("<script language = ‘javascript‘ type = ‘text/javascript‘>alert(‘請選擇上傳檔案‘);</script>");
                }
            }
            catch
            {
                return null;
            }
        }
        #endregion