ViewModelViewHost class¶

Attributes: [RequiresUnreferencedCode("This class uses reflection to determine the view model type at runtime, which may be incompatible with trimming.")] [RequiresDynamicCode("If some of the generic arguments are annotated (either with DynamicallyAccessedMembersAttribute, or generic constraints), trimming can't validate that the requirements of those annotations are met.")] [DebuggerDisplay("{ViewModel}, {DefaultContent}")]

Summary¶

View source

A controller that resolves an IViewFor implementation for the supplied ViewModel and hosts it as a child view controller.

classDiagram
class ViewModelViewHost
class ReactiveViewController
ReactiveViewController <|-- ViewModelViewHost

Inherits from: ReactiveViewController

Remarks¶

ViewModelViewHost is useful when a view is responsible for projecting an arbitrary view model instance determined at runtime. The host listens for ViewModel or contract changes, resolves a view via ViewLocator, and swaps the child controller hierarchy accordingly.

Provide a DefaultContent controller to display placeholder UI while no view model is available, or set ViewContractObservable to drive platform-specific view selection.

Examples¶

<![CDATA[
 var host = new ViewModelViewHost
 {
 ViewModel = screen.Router.CurrentViewModel.FirstAsync().Wait(),
 ViewLocator = locator,
 DefaultContent = new LoadingViewController()
 };
 
 host.ViewContractObservable = this.WhenAnyValue(x => x.SelectedTheme);
 ]]>

Constructors¶

Properties¶

Methods¶