private void Button_Click(object sender, RoutedEventArgs e)
{
api AddShopListItemApi = new api();
Shoppinglist shoppinglist = (Shoppinglist)shoppinglists.SelectedItem;
Product product = finalProductList[productlist.SelectedIndex];
MessageBox.Show(product.naam);
MessageBox.Show(shoppinglist.Name);
if (AddShopListItemApi.AddShoppinglistItem(shoppinglist.Id, product.Id))
{
MessageBox
.Show("gelukt");
}
else
{
MessageBox.Show("nee");
}
}