Is there a way to pass a class object to a new page?

[TommeZ]

My page has a constructor that needs an object passed through to open. Is there a way to pass an object through using the page navigation in wpfui?

Class object = new Class();
Page myPage = new Page(object);
(Application.Current.MainWindow as Container)?.RootNavigation.Navigate("myPage", object);

(The aforementioned code not taking the object I'm attempting to pass through)

[pomianowski]

WPF UI support CommunityToolkit and Microsoft.Toolkit.Mvvm. You can pass data to the page using dependency injection pattern.

You can see an example of use in the constructor here

wpfui/src/Wpf.Ui.Demo/Views/Pages/Dashboard.xaml.cs

Line 21 in 838cd35

public Dashboard(DashboardViewModel viewModel)

Dependency injection for WPF looks like this:

1. You register your pages and other repeatable objects in eg App.cs registering them as services.
2. In the constructor of the page (which is treated as a service) you declare to use a different services (e.g. ViewModel or ThemeService)
3. When navigation gets the Page object, it's constructor objects are passed via service provider.

In order for WPF UI to correctly understand pages as services, you need to create a special service named IPageService.

wpfui/src/Wpf.Ui.Demo/App.xaml.cs

Line 58 in 838cd35

services.AddSingleton<IPageService, PageService>();

Then you need to tell your navigation control like NavigationFluent to use IPageService. Thanks to this, instead of creating new objects itself, it will use the service provider.

wpfui/src/Wpf.Ui.Demo/Views/Container.xaml.cs

Line 102 in 838cd35

public void SetPageService(IPageService pageService)