Get File From Data Base & Attach to mail

hello,
          I m stored the file in data base as datatype(Image). how to get ths file and send as attachment in mail msg through coading...?
Ths is my code........


Code for retriveing data from data base and call method to send mail


private void EmailTimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)         {              ...