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VB.NET NavigationService.FragmentNavigation事件代码示例

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?那么恭喜您, 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
开发者ID:VB.NET开发者,项目名称:System.Windows.Navigation,代码行数:15,代码来源:NavigationService.FragmentNavigation


注:本文中的System.Windows.Navigation.NavigationService.FragmentNavigation事件示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。