WebBrowser.DocumentCompleted 事件

  • 參考

定義

命名空間:
System.Windows.Forms
組件:
System.Windows.Forms.dll

發生於 WebBrowser 控制項完成文件的載入時。

public:
 event System::Windows::Forms::WebBrowserDocumentCompletedEventHandler ^ DocumentCompleted;
public event System.Windows.Forms.WebBrowserDocumentCompletedEventHandler DocumentCompleted;
public event System.Windows.Forms.WebBrowserDocumentCompletedEventHandler? DocumentCompleted;
member this.DocumentCompleted : System.Windows.Forms.WebBrowserDocumentCompletedEventHandler 
Public Custom Event DocumentCompleted As WebBrowserDocumentCompletedEventHandler 
Public Event DocumentCompleted As WebBrowserDocumentCompletedEventHandler

事件類型

WebBrowserDocumentCompletedEventHandler

範例

下列程式碼範例示範如何使用這個事件，在檔完全載入之後列印檔案。

private void PrintHelpPage()
{
    // Create a WebBrowser instance. 
    WebBrowser webBrowserForPrinting = new WebBrowser();

    // Add an event handler that prints the document after it loads.
    webBrowserForPrinting.DocumentCompleted +=
        new WebBrowserDocumentCompletedEventHandler(PrintDocument);

    // Set the Url property to load the document.
    webBrowserForPrinting.Url = new Uri(@"\\myshare\help.html");
}

private void PrintDocument(object sender,
    WebBrowserDocumentCompletedEventArgs e)
{
    // Print the document now that it is fully loaded.
    ((WebBrowser)sender).Print();

    // Dispose the WebBrowser now that the task is complete. 
    ((WebBrowser)sender).Dispose();
}

Private Sub PrintHelpPage()

    ' Create a WebBrowser instance. 
    Dim webBrowserForPrinting As New WebBrowser()

    ' Add an event handler that prints the document after it loads.
    AddHandler webBrowserForPrinting.DocumentCompleted, New _
        WebBrowserDocumentCompletedEventHandler(AddressOf PrintDocument)

    ' Set the Url property to load the document.
    webBrowserForPrinting.Url = New Uri("\\myshare\help.html")

End Sub

Private Sub PrintDocument(ByVal sender As Object, _
    ByVal e As WebBrowserDocumentCompletedEventArgs)

    Dim webBrowserForPrinting As WebBrowser = CType(sender, WebBrowser)

    ' Print the document now that it is fully loaded.
    webBrowserForPrinting.Print()
    MessageBox.Show("print")

    ' Dispose the WebBrowser now that the task is complete. 
    webBrowserForPrinting.Dispose()

End Sub

備註

每當設定下列其中一個屬性或呼叫 方法時，控制項 WebBrowser 就會巡覽至新的檔：

DocumentCompleted處理事件，以在新檔完成載入時接收通知。 DocumentCompleted事件發生時，會完整載入新的檔，這表示您可以透過 Document 、 DocumentText 或 DocumentStream 屬性存取其內容。

若要在導覽開始之前接收通知，請處理 Navigating 事件。 處理此事件可讓您取消流覽，例如，當使用者尚未完整填寫表單時。 Navigated處理事件，以在控制項完成流覽時 WebBrowser 接收通知，並開始在新位置載入檔。

如需處理事件的詳細資訊，請參閱 處理和引發事件。

適用於

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