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 builder.Services.AddSingleton<MainPage>();

builder.Services.AddTransient<ManageToDoPage>(); 

 Routing.RegisterRoute(nameof(ManageToDoPage), typeof(ManageToDoPage));

 var navigationParametrs = new Dictionary<string, object>

            {

                {nameof(ToDo), new ToDo()}

            };

            await Shell.Current.GoToAsync(nameof(ManageToDoPage), navigationParametrs);

[QueryProperty(nameof(ToDo), "ToDo")]

public partial class ManageToDoPage : ContentPage

            var artwork = (Artwork)e.SelectedItem;

            var artworkDetailPage = new ArtworkDetailsPage();

            artworkDetailPage.BindingContext = artwork;

            await Navigation.PushAsync(artworkDetailPage);