WP8如何导航到另一个项目页面

Question

My problem is in navigating to another project file "ChatMeApp/MainPage.xaml" from my original project. My code is

private void GoToChat(object sender, EventArgs e)
{
    this.NavigationService.Navigate(new Uri("/ChatMeApp;component MainPage.xaml", UriKind.RelativeOrAbsolute));
} 

When I run this I get an exception in app.xaml.cs and it breaks here

// Code to execute if a navigation fails
private void RootFrame_NavigationFailed(object sender, NavigationFailedEventArgs e)
{
    if (System.Diagnostics.Debugger.IsAttached)
    {
        // A navigation has failed; break into the debugger
        System.Diagnostics.Debugger.Break();
    }
}

I'm fairly new to WP8 development (coming from ac# background). All the advise I've seen makes me think this should work, can any one see a problem with it or suggest what else the problem might be.

Answer 1

I am assuming that you are trying to navigate to /MainPage.xaml within your current project . In that case you can achieve your goal with the following code.

private void GoToChat(object sender, EventArgs e)
{
    NavigationService.Navigate(new Uri("/MainPage.xaml", UriKind.Relative));
} 

If you are trying to navigate to a page in another app, this isn't possible.

Answer 2

您在Uri中的“组件”之后有一个额外的空间。

new Uri("/ChatMeApp;component/MainPage.xaml", UriKind.Relative));

Answer 3

Actullay you are trying to Navigate to another Assembly, you can also achive this by the source code pasted below.

Both case are pasted below

private void Button_Click_1(object sender, RoutedEventArgs e)
{
    //Navigate to a page in the current assembly
    NavigationService.Navigate(new Uri("/Page1.xaml", UriKind.Relative));
}

 private void Button_Click(object sender, RoutedEventArgs e)
{
    //Navigate to a page in an external referenced assembly
    NavigationService.Navigate(new Uri("/AnotherProject;component/MainPage.xaml",   UriKind.Relative));
}