Table of Contents

Interface IActivatableViewModel

Namespace
ReactiveUI
Assembly
ReactiveUI.dll

Implementing this interface on a ViewModel indicates that the ViewModel is interested in Activation events. Instantiate the Activator, then call WhenActivated on your class to register what you want to happen when the View is activated. See the documentation for ViewModelActivator to read more about Activation.

public interface IActivatableViewModel
Extension Methods
WhenAnyMixin.WhenAny<TSender, TRet, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(TSender?, Expression<Func<TSender, T1>>, Expression<Func<TSender, T2>>, Expression<Func<TSender, T3>>, Expression<Func<TSender, T4>>, Expression<Func<TSender, T5>>, Expression<Func<TSender, T6>>, Expression<Func<TSender, T7>>, Expression<Func<TSender, T8>>, Expression<Func<TSender, T9>>, Expression<Func<TSender, T10>>, Expression<Func<TSender, T11>>, Expression<Func<TSender, T12>>, Func<IObservedChange<TSender, T1>, IObservedChange<TSender, T2>, IObservedChange<TSender, T3>, IObservedChange<TSender, T4>, IObservedChange<TSender, T5>, IObservedChange<TSender, T6>, IObservedChange<TSender, T7>, IObservedChange<TSender, T8>, IObservedChange<TSender, T9>, IObservedChange<TSender, T10>, IObservedChange<TSender, T11>, IObservedChange<TSender, T12>, TRet>)
WhenAnyMixin.WhenAny<TSender, TRet, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>(TSender?, Expression<Func<TSender, T1>>, Expression<Func<TSender, T2>>, Expression<Func<TSender, T3>>, Expression<Func<TSender, T4>>, Expression<Func<TSender, T5>>, Expression<Func<TSender, T6>>, Expression<Func<TSender, T7>>, Expression<Func<TSender, T8>>, Expression<Func<TSender, T9>>, Expression<Func<TSender, T10>>, Expression<Func<TSender, T11>>, Expression<Func<TSender, T12>>, Func<IObservedChange<TSender, T1>, IObservedChange<TSender, T2>, IObservedChange<TSender, T3>, IObservedChange<TSender, T4>, IObservedChange<TSender, T5>, IObservedChange<TSender, T6>, IObservedChange<TSender, T7>, IObservedChange<TSender, T8>, IObservedChange<TSender, T9>, IObservedChange<TSender, T10>, IObservedChange<TSender, T11>, IObservedChange<TSender, T12>, TRet>, bool)

Examples

public sealed class DetailsViewModel : ReactiveObject, IActivatableViewModel
{
    public DetailsViewModel()
    {
        Activator = new ViewModelActivator();

        this.WhenActivated(disposables =>
        {
            LoadCommand.Execute().Subscribe().DisposeWith(disposables);
        });
    }

    public ViewModelActivator Activator { get; }
}

Remarks

Typical usage involves creating a ViewModelActivator field and calling WhenActivated in the constructor to compose subscriptions that should live only while the view is displayed.

Properties

Activator

Gets the Activator which will be used by the View when Activation/Deactivation occurs.

ViewModelActivator Activator { get; }

Property Value

ViewModelActivator