什麼是 「System.Windows.Navigation」 組裝在Windows窗體應用程序

Question

我試圖添加這些代碼：

public partial class My_SyS : Form 
{ 
    List<Uri> HistoryStack; 
    int HistoryStack_Index; 
    bool fromHistory; 

    public Sisi_Start() 
    { 
     InitializeComponent(); 

     HistoryStack = new List<Uri>(); 
     HistoryStack_Index = 0; 
     fromHistory = false; 
     webBrowser_main.Navigated += new EventHandler<System.Windows.Navigation.NavigationEventArgs>(webBrowser_main_Navigated); 
     updateNavButtons(); 
    } 

    .... 

這裏是webBrowser_main_Navigated事件：

private void webBrowser_main_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e) 
{ 
} 

我得到了錯誤如下：

The type or namespace name 'Navigation' does not exist in the namespace 'System.Windows' (are you missing an assembly reference?) 

其組裝我應該我們e供參考？

Answer 1

添加參考System.Windows.Navigation在PresentationFramework（在PresentationFramework.dll）大會