Frame.NavigationService 屬性
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
取得 NavigationService 這個用 Frame 來提供導航服務的資訊。
public:
property System::Windows::Navigation::NavigationService ^ NavigationService { System::Windows::Navigation::NavigationService ^ get(); };public System.Windows.Navigation.NavigationService NavigationService { get; }member this.NavigationService : System.Windows.Navigation.NavigationServicePublic ReadOnly Property NavigationService As NavigationService屬性值
一個Frame代表此 NavigationService所Frame使用的物件，若有的話。 否則會傳回 null。
備註
Frame 用於 NavigationService 支援託管內容的導航。 NavigationService對於承載 a Frame 的程式碼來說非常有用，可以取得 。NavigationService 由 Frame所託管的內容，例如 Page，應使用 GetNavigationService 或 NavigationService 取得對 NavigationService的參考。
Note
NavigationService不會回傳與呼叫NavigationService與傳遞GetNavigationService相同的Frame參考。 前者回NavigationService傳 Frame 該 所擁有NavigationService的 ，後者則回傳 導航主機所載內容的 。Frame 以下程式碼說明了這些差異。
using System.Windows.Controls;
using System.Windows.Navigation;
Imports System.Windows.Controls
Imports System.Windows.Navigation
// Get the NavigationService owned by the Frame
NavigationService frameNS = this.frame.NavigationService;
// Get the NavigationService for the navigation host that navigated
// to the content in which the Frame is hosted
NavigationService navigationHostNS = NavigationService.GetNavigationService(this.frame);
' Get the NavigationService owned by the Frame
Dim frameNS As NavigationService = Me.frame.NavigationService
' Get the NavigationService for the navigation host that navigated
' to the content in which the Frame is hosted
Dim navigationHostNS As NavigationService = NavigationService.GetNavigationService(Me.frame)
