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VB.NET NavigationService.FragmentNavigation事件代碼示例

本文整理匯總了VB.NET中System.Windows.Navigation.NavigationService.FragmentNavigation事件的典型用法代碼示例。如果您正苦於以下問題:VB.NET NavigationService.FragmentNavigation事件的具體用法?VB.NET NavigationService.FragmentNavigation怎麽用?VB.NET NavigationService.FragmentNavigation使用的例子?那麽, 這裏精選的事件代碼示例或許可以為您提供幫助。


在下文中一共展示了NavigationService.FragmentNavigation事件的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的VB.NET代碼示例。

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
開發者ID:VB.NET開發者,項目名稱:System.Windows.Navigation,代碼行數:15,代碼來源:NavigationService.FragmentNavigation


注:本文中的System.Windows.Navigation.NavigationService.FragmentNavigation事件示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。