NavigationView Example with C# Markup

[johnnyelwailer]

Good day

I am trying to write a little Winui app using the UNO C# Markup Extensions.

I want to display a simple NavigationView, but now I'm struggling, how to make the NavigationViewItem perform the actual navigation. I didn't find any C# Markup Example using the NavigationView, so I tried to translate if from the XAML samples.

Basicly, my code is like this:

  new NavigationView()
      .PaneDisplayMode(NavigationViewPaneDisplayMode.LeftMinimal)
      .MenuItems(
          new NavigationViewItem()
              .Content("Home")
              .Icon(new SymbolIcon(Symbol.Home))
              .Navigation(request: "Main")
      )

Now, it displays fine in the ui, but clicking on the navigation item does nothing.

I configured navigation using the builder:

...
    .UseNavigation(ReactiveViewModelMappings.ViewModelMappings, RegisterRoutes)
...
    private static void RegisterRoutes(IViewRegistry views, IRouteRegistry routes)
    {

        views.Register(
            new ViewMap<Shell, ShellModel>(),
            new ViewMap<MainPage, MainModel>(),
        );

        routes.Register(
            new RouteMap("", View: views.FindByViewModel<ShellModel>(),
                Nested:
                [
                    new RouteMap("Main", View: views.FindByViewModel<MainModel>()),
                ]
            )
        );

    }

Notice, that I can use the INavigator service from code no problem, calling NavigateViewModelAsync works!

By the way, I also opened a related Github Issue: #2040

Anybody has experience on this issue?

Thanks.