Preloading a Page before Navigating to it WPF

My WPF app consists of a NavigationWindow, and then a set of Pages defined as separate xaml files. The NavigationWindow loads and displays the various pages in turn.

My problem is that loading the p开发者_JS百科ages is expensive and may fail. Thus, I want to preload the page in the background, and then only call Navigate() once the page has finished loading.

In pseudocode what I would want is

    Page nextPage;
    try
    {
    nextPage = LoadPageFromURI(new URI(...));
    }
    catch
    {
/// constructor of the page threw an exception ... load a different page
    }

    myNavigationWindow.Navigate(nextPage);

I can't however find framework functions to do what I want. Could someone who knows WPF better give me a hand? Thanks you!

---

It looks like Application.LoadComponent() will do what I want.

Sample code:

Page page;

try
{
    page = (Page) Application.LoadComponent(new Uri(path, UriKind.Relative));
}
catch (Exception ex)
{
    // note error and abort
}

Action action = () => ((NavigationWindow)Application.Current.MainWindow).Navigate(page);
Application.Current.Dispatcher.BeginInvoke(action, DispatcherPriority.Normal);