本文整理汇总了VB.NET中System.Windows.Navigation.NavigationService.FragmentNavigation事件的典型用法代码示例。如果您正苦于以下问题：VB.NET NavigationService.FragmentNavigation事件的具体用法？VB.NET NavigationService.FragmentNavigation怎么用？VB.NET NavigationService.FragmentNavigation使用的例子？那么, 这里精选的事件代码示例或许可以为您提供帮助。
在下文中一共展示了NavigationService.FragmentNavigation事件的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: TryCast
Private Sub NavigationService_FragmentNavigation(ByVal sender As Object, ByVal e As FragmentNavigationEventArgs)
' Get content the ContentControl that contains the XAML page that was navigated to
Dim content As Object = (CType(e.Navigator, ContentControl)).Content
' Find the fragment, which is the FrameworkElement with its Name attribute set
Dim fragmentElement As FrameworkElement = TryCast(LogicalTreeHelper.FindLogicalNode(CType(content, DependencyObject), e.Fragment), FrameworkElement)
' If fragment found, bring it into view, or open an error page
If fragmentElement Is Nothing Then
Me.NavigationService.Navigate(New FragmentNotFoundPage())
' Don't let NavigationService handle this event, since we just did
e.Handled = True
End If
End Sub