public string GetAttachPhotoID()
        {
            AttachPhoto attachphoto = new AttachPhoto();
            var         mylist      = this.ListAttachPhoto().ToList();

            if (mylist.Count == 0)
            {
                attachphoto.AttachPhotoID = "0000000001";
            }
            else
            {
                string s = ((from x in mylist
                             select new { x.AttachPhotoID }).Last()).AttachPhotoID.ToString();
                int    lastint = Int32.Parse(s.Substring(0, 10)) + 1;
                string myid    = String.Format("{0:0000000000}", lastint);
                string autoid  = myid.ToString();
                attachphoto.AttachPhotoID = autoid;
            }
            return(attachphoto.AttachPhotoID);
        }
 public void Add(AttachPhoto attachphoto)
 {
     db.AttachPhotos.InsertOnSubmit(attachphoto);
 }