public bool Delete(Member entity)
 {
     using (var dba = new BetEXDataContainer())
     {
         var member = dba.Members.Where(w => w.MemberID == entity.MemberID).SingleOrDefault();
         if (member != null)
         {
             dba.DeleteObject(member);
             return true;
         }
         return false;
     }
 }