Using the UI View Management package

The UI View Management package is designed for improving how your applications can create and manage additional windows in Windows applications.

Creating a new application window with a Page type

Windows application developers working with a navigation Frame will be aware of the ease of use for navigating your applications with Page object types.

You can simply call Navigate passing a parameter object. So why shouldn't creating a new window follow the same way.

The WindowManager helper class provides a CreateNewWindowForPageAsync method with multiple overloads with this exact capability.

Below is an example of launching a new application window with a page type.

private async Task LaunchNewWindow()
{
    await WindowManager.CreateNewWindowForPageAsync(typeof(MainPage), "ParameterObject");
}

This example will launch a new Window with an initial page showing the MainPage, passing the string as a page navigation parameter.

Accessing the window's CoreDispatcher

When a new window is launched using the CreateNewWindowForPageAsync methods, the view's CoreDispatcher instance will be registered with the ViewCoreDispatcherManager instance.

This can be accessed from anywhere in your application's executing code using the ViewCoreDispatcherManager.Current.Get method passing the identifier of the view.

To keep an instance of the view ID associated with your page, when initializing your page class, you can retrieve the view ID using the following code.

public MainPage()
{
    var view = ApplicationView.GetForCurrentView();
    this.ViewId = view?.Id ?? -1;
}

public int ViewId { get; }