private void BtnAdd_Click(object sender, RoutedEventArgs e)//extra pokedex entry aanmaken
        {
            List <int> Idlist = new List <int>();

            foreach (Pokedex pokedexEntry in pokedexentries)
            {
                Idlist.Add(pokedexEntry.Id);
            }
            pokedexEntry.Id = 1;
            while (Idlist.Contains(pokedexEntry.Id))
            {
                pokedexEntry.Id += 1;
            }
            pokedexEntry.PokemonName        = txtNaam.Text;
            pokedexEntry.Type1              = cmbType1.SelectedIndex + 1;
            pokedexEntry.Type2              = cmbType2.SelectedIndex + 1;
            pokedexEntry.PokemonDescription = "Nothing";
            pokedexEntry.PokemonWeight      = 50.0M;
            pokedexEntry.ExpMax             = 160;
            pokedexEntry.EvolveItems        = null;
            pokedexEntry.CaptureRate        = 45;
            pokedexEntry.EvolveThreshold    = null;
            DatabaseOperations.AddPokedexEntry(pokedexEntry);                       //refresh
            datagridPokedexEntries.ItemsSource = DatabaseOperations.PokedexEntry(); //refresh
        }