导航到OnNavigatedTo的另一个页面？ [英] Navigate to another page at OnNavigatedTo?

问题描述

为什么方法导航在调用时无效 OnNavigatedTo 活动

Why does the method Navigate not work when called in the OnNavigatedTo event of this page?

这个行为是否可为您重现？

Is this behavior reproducible for you?

任何想法如何避免这个问题？ / p>

Any ideas how to avoid this problem?

void LockScreenPage::OnNavigatedTo(Windows::UI::Xaml::Navigation::NavigationEventArgs^ e)
{
    //if user has no PIN protection
    this->Frame->Navigate(Windows::UI::Xaml::Interop::TypeName(AnotherPage::typeid));

    //else verify PIN
}

推荐答案

为了获得正确的行为，我现在使用调度程序：

To get the right behavior I am now using the dispatcher:

    this->Dispatcher->RunAsync(Windows::UI::Core::CoreDispatcherPriority::Normal, ref new Windows::UI::Core::DispatchedHandler([this] () {
        this->Frame->Navigate(Windows::UI::Xaml::Interop::TypeName(AnotherPage::typeid));
    }));

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