public ActionResult DeleteConfirmed(decimal id)
{
SET_BOOK_GROUP set_book_group = db.SET_BOOK_GROUP.Single(s => s.BOOK_GROUP_NO == id);
/*db.SET_BOOK_GROUP.DeleteObject(set_book_group);
* db.SaveChanges();*/
db.SET_BOOK_GROUP_DELETE(set_book_group.BOOK_GROUP_NO,
decimal.Parse(Session["sess_USER_NO"].ToString()),
decimal.Parse(Session["sess_LOGON_NO"].ToString()));
return(RedirectToAction("Index"));
}