Windows Presentation Foundation (WPF)¶

Run the complete page example.

Add ReactiveUI.WPF to your WPF application project. It brings ReactiveUI and, through it, ReactiveUI.Binding.

dotnet add package ReactiveUI.WPF

ReactiveUI.WPF also ships as ReactiveUI.WPF.Reactive, built from the same source, for an app that uses System.Reactive.

Configure ReactiveUI at startup¶

Call WithWpf on the app builder once, in your Application's startup, then show your main window.

_ = RxAppBuilder.CreateReactiveUIBuilder().WithWpf().BuildApp();

MainWindow = new MainWindow();
MainWindow.Show();

WithWpf registers the WPF view hosts, the activation fetcher and the dispatcher-backed main-thread sequencer. RxAppBuilder covers the builder itself, and WPF covers everything you build with the package: showing a router's current page with RoutedViewHost, binding a view to its view model, previewing a view model without navigating to it, and the pieces WithWpf configures for you. A window's or user control's view model implementing IScreen gives it a router to navigate; see Routing.

The compelling example walks through a first view model and view. There is no ReactiveUI.Validation code in this installation's example project; see Validation for validation rules on a view model.