public ActionResult <ArrangementlisteResultatDto> GetAll()
        {
            var a = _context.Arrangementer
                    .Include(x => x.Arrangoer).Where(x => x == x);


            var arr = new ArrangementlisteResultatDto {
                DagensDato    = DateTime.Today,
                Arrangoerer   = _context.Arrangoerer.ToList(),
                Arrangementer = a.ToList()
            };

            return(arr);
            // return _context.Arrangementer.ToList();
        }
        public ActionResult <ArrangementlisteResultatDto> Sok([FromBody] ArrangementlisteFilterDto filter)
        {
            var a = _context.Arrangementer
                    .Include(x => x.Arrangoer).Where(x => x == x);


            if (filter != null && filter.Arrangoerer != null && filter.Arrangoerer.Count > 0)
            {
                a = a.Where(x => filter.Arrangoerer.Contains(x.ArrangoerId));
            }

            var arr = new ArrangementlisteResultatDto {
                Arrangoerer   = _context.Arrangoerer.ToList(),
                Arrangementer = a.ToList()
            };

            return(arr);
        }