WP页面间导航的参数传递

1. Fragment

导航页面

private void NavigateWithFragmentButton_Click(object sender, RoutedEventArgs e)

{
      this.NavigationService.Navigate(new Uri(“/SecondPage.xaml#HelloWorld”, UriKind.Relative));
} 

导航到页面

protected override void OnFragmentNavigation(FragmentNavigationEventArgs e)

{

       base.OnFragmentNavigation(e);
       MessageBox.Show(“Fragment: “ + e.Fragment);
}

2. QueryString

导航页面

private void NavigateWithQueryButton_Click(object sender, RoutedEventArgs e)

{
      this.NavigationService.Navigate(new Uri(“/SecondPage.xaml?CustomerId=1234 & Product=555”,UriKind.Relative));
}
导航到页面

protected override void OnNavigatedTo(NavigationEventArgs e)

{
      base.OnNavigatedTo(e);
      foreach (var item in NavigationContext.QueryString)

     {
            MessageBox.Show(“Query String [“ + item.Key + “] = “ + item.Value);
     }
}

3. 用一个全局的Dictionary用来存放页面之间临时传递的参数

注：尽可能降低页面之间的耦合，方便墓碑化