[英]Windows Store Navigating from App.xaml.cs?
i got this problem and i cant seem to make it work, i want to navigate in a windows store project from App.xaml.cs to another page when there is no network,but i cant do it. 我遇到了这个问题,我似乎无法使其工作,我想在没有网络的情况下在Windows存储项目中从App.xaml.cs导航到另一个页面,但是我做不到。 Here is the code
这是代码
sealed partial class App : Application
{
public App()
{
this.InitializeComponent();
this.Suspending += OnSuspending;
NetworkInformation.NetworkStatusChanged += NetworkInformation_NetworkStatusChanged;
}
private void NetworkInformation_NetworkStatusChanged(object sender)
{
ConnectionProfile profile =
NetworkInformation.GetInternetConnectionProfile();
if (profile.GetNetworkConnectivityLevel() >=
NetworkConnectivityLevel.InternetAccess)
{
// We have Internet, all is golden
}
else
{
DoThis();
}
}
public async void DoThis()
{
var dispatcher = Windows.UI.Core.CoreWindow.GetForCurrentThread().Dispatcher;
await dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
Window.Current.Content = new Eroare();
});
}
protected override void OnLaunched(LaunchActivatedEventArgs args)
{
Frame rootFrame = Window.Current.Content as Frame;
// Do not repeat app initialization when the Window already has content,
// just ensure that the window is active
if (rootFrame == null)
{
// Create a Frame to act as the navigation context and navigate to the first page
rootFrame = new Frame();
if (args.PreviousExecutionState == ApplicationExecutionState.Terminated)
{
//TODO: Load state from previously suspended application
}
// Place the frame in the current Window
Window.Current.Content = rootFrame;
}
if (rootFrame.Content == null)
{
// When the navigation stack isn't restored navigate to the first page,
// configuring the new page by passing required information as a navigation
// parameter
if (!rootFrame.Navigate(typeof(MainPage), args.Arguments))
{
throw new Exception("Failed to create initial page");
}
}
// Ensure the current window is active
Window.Current.Activate();
}
/// <summary>
/// Invoked when application execution is being suspended. Application state is saved
/// without knowing whether the application will be terminated or resumed with the contents
/// of memory still intact.
/// </summary>
/// <param name="sender">The source of the suspend request.</param>
/// <param name="e">Details about the suspend request.</param>
private void OnSuspending(object sender, SuspendingEventArgs e)
{
var deferral = e.SuspendingOperation.GetDeferral();
//TODO: Save application state and stop any background activity
deferral.Complete();
}
}
Any help please? 有什么帮助吗?
Try this, 尝试这个,
var rootFrame = Window.Current.Content as Frame;
rootFrame.Navigate(typeof(YourPage));
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