How to modify navigation menu in main.cs while using WindowsTemplateStudio?

I'm using WindowsTemplateStudio, For some reason, I have to modify navigation menu in MainPage.xaml.cs, like remove or add some items. How to do? Thx.

If you created a Navigation Pane via WindowsTemplateStudio, you can find the NavigationView in Views/ShellPage.xaml where you can add a NavigationViewItem.

In the NavigationViewItem, x:Uid points to the text resource in Strings/en-us.

If necessary, you can also add shortcuts in ShellPage.xaml.cs.

---

Update

If you want to modify the NavigationView in the ShellPage on other pages, you need to do some extra work.

1. Set the NavigationView's x:FieldModifier property to Public

<winui:NavigationView
    x:Name="navigationView"
    x:FieldModifier="Public"
    ...>
</winui:NavigationView>

2. Create a static instance of ShellPage

public static ShellPage Current;

public ShellPage()
{
    InitializeComponent();
    DataContext = this;
    Current = this;
    Initialize();
}

3. Complete the operation of NavigationView through ShellPage.Current.navigationView

foreach (var item in ShellPage.Current.navigationView.MenuItems)
{
    var navItem = item as NavigationViewItem;
    // Todo
}

Of course, this way can directly achieve the goal. But in comparison, I prefer to use Binding, generate MenuItems by creating ObservableCollection<T> and bind to navigationView.MenuItemsSource.

Best regards.