public IHttpActionResult PostFestival(Festival festival)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            _dALFestival.AddFestival(festival);

            return(CreatedAtRoute("DefaultApi", new { id = festival.Id }, festival));
        }
        private void AddFestivalExecute()
        {
            try
            {
                Festival newFestival = new Festival
                {
                    Name     = Festival.Name,
                    Place_Id = allPlaces.ElementAt(selectedPlace).Id,
                    Date     = DateTime.Parse(Date).ToString("dd/MM/yyyy"),
                    Deleted  = false
                };
                newFestival.Place = _dALPlace.GetPlaceById(newFestival.Place_Id);

                _dALFestival.AddFestival(newFestival);
                _addWin.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }