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WebBrowserNavigatingEventArgs.Url Properti

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Definisi

Ruang nama:
System.Windows.Forms
Rakitan:
System.Windows.Forms.dll

Mendapatkan lokasi dokumen tempat WebBrowser kontrol menavigasi.

public:
 property Uri ^ Url { Uri ^ get(); };
public Uri Url { get; }
public Uri? Url { get; }
member this.Url : Uri
Public ReadOnly Property Url As Uri

Nilai Properti

Uri

yang Uri mewakili lokasi dokumen tempat WebBrowser kontrol menavigasi.

Contoh

Contoh kode berikut menunjukkan cara menggunakan handler agar WebBrowser.Navigating acara membatalkan navigasi saat formulir halaman Web belum diisi. Properti WebBrowser.Document digunakan untuk menentukan apakah bidang input formulir berisi nilai. Contoh ini mengharuskan formulir Anda berisi kontrol yang WebBrowser disebut webBrowser1.

private void Form1_Load(object sender, EventArgs e)
{
    webBrowser1.DocumentText =
        "<html><body>Please enter your name:<br/>" +
        "<input type='text' name='userName'/><br/>" +
        "<a href='http://www.microsoft.com'>continue</a>" +
        "</body></html>";
    webBrowser1.Navigating += 
        new WebBrowserNavigatingEventHandler(webBrowser1_Navigating);
}

private void webBrowser1_Navigating(object sender, 
    WebBrowserNavigatingEventArgs e)
{
    System.Windows.Forms.HtmlDocument document =
        this.webBrowser1.Document;

    if (document != null && document.All["userName"] != null && 
        String.IsNullOrEmpty(
        document.All["userName"].GetAttribute("value")))
    {
        e.Cancel = true;
        System.Windows.Forms.MessageBox.Show(
            "You must enter your name before you can navigate to " +
            e.Url.ToString());
    }
}

Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) _
    Handles Me.Load

    webBrowser1.DocumentText = _
        "<html><body>Please enter your name:<br/>" & _
        "<input type='text' name='userName'/><br/>" & _
        "<a href='http://www.microsoft.com'>continue</a>" & _
        "</body></html>"

End Sub

Private Sub webBrowser1_Navigating( _
    ByVal sender As Object, ByVal e As WebBrowserNavigatingEventArgs) _
    Handles webBrowser1.Navigating

    Dim document As System.Windows.Forms.HtmlDocument = _
        webBrowser1.Document
    If document IsNot Nothing And _
        document.All("userName") IsNot Nothing And _
        String.IsNullOrEmpty( _
        document.All("userName").GetAttribute("value")) Then

        e.Cancel = True
        MsgBox("You must enter your name before you can navigate to " & _
            e.Url.ToString())
    End If

End Sub

Berlaku untuk

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