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WebBrowser.Navigated Event

  • Reference

Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll

Occurs when the WebBrowser control has navigated to a new document and has begun loading it.

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

Event Type

WebBrowserNavigatedEventHandler

Examples

The following code example demonstrates how to use a handler for the Navigated event to implement an address bar for the WebBrowser control. This example requires that your form contains a WebBrowser control called webBrowser1, a TextBox control called TextBoxAddress, and a Button control called ButtonGo. When you type a URL into the text box and press ENTER or click the Go button, the WebBrowser control navigates to the URL specified. When you navigate by clicking a hyperlink, the text box automatically updates to display the current URL.

For the complete code example, see How to: Add Web Browser Capabilities to a Windows Forms Application.

// Navigates to the URL in the address text box when 
// the ENTER key is pressed while the text box has focus.
void TextBoxAddress_KeyDown( Object^ /*sender*/, System::Windows::Forms::KeyEventArgs^ e )
{
   if ( e->KeyCode == System::Windows::Forms::Keys::Enter &&  !this->TextBoxAddress->Text->Equals( "" ) )
   {
      this->WebBrowser1->Navigate( this->TextBoxAddress->Text );
   }
}

// Navigates to the URL in the address text box when 
// the Go button is clicked.
void ButtonGo_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
   if (  !this->TextBoxAddress->Text->Equals( "" ) )
   {
      this->WebBrowser1->Navigate( this->TextBoxAddress->Text );
   }
}

// Updates the URL in TextBoxAddress upon navigation.
void WebBrowser1_Navigated( Object^ /*sender*/, System::Windows::Forms::WebBrowserNavigatedEventArgs^ /*e*/ )
{
   this->TextBoxAddress->Text = this->WebBrowser1->Url->ToString();
}

// Navigates to the URL in the address box when 
// the ENTER key is pressed while the ToolStripTextBox has focus.
private void toolStripTextBox1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Enter)
    {
        Navigate(toolStripTextBox1.Text);
    }
}

// Navigates to the URL in the address box when 
// the Go button is clicked.
private void goButton_Click(object sender, EventArgs e)
{
    Navigate(toolStripTextBox1.Text);
}

// Navigates to the given URL if it is valid.
private void Navigate(String address)
{
    if (String.IsNullOrEmpty(address)) return;
    if (address.Equals("about:blank")) return;
    if (!address.StartsWith("http://") &&
        !address.StartsWith("https://"))
    {
        address = "http://" + address;
    }
    try
    {
        webBrowser1.Navigate(new Uri(address));
    }
    catch (System.UriFormatException)
    {
        return;
    }
}

// Updates the URL in TextBoxAddress upon navigation.
private void webBrowser1_Navigated(object sender,
    WebBrowserNavigatedEventArgs e)
{
    toolStripTextBox1.Text = webBrowser1.Url.ToString();
}


' Navigates to the URL in the address box when 
' the ENTER key is pressed while the ToolStripTextBox has focus.
Private Sub toolStripTextBox1_KeyDown( _
    ByVal sender As Object, ByVal e As KeyEventArgs) _
    Handles toolStripTextBox1.KeyDown

    If (e.KeyCode = Keys.Enter) Then
        Navigate(toolStripTextBox1.Text)
    End If

End Sub

' Navigates to the URL in the address box when 
' the Go button is clicked.
Private Sub goButton_Click( _
    ByVal sender As Object, ByVal e As EventArgs) _
    Handles goButton.Click

    Navigate(toolStripTextBox1.Text)

End Sub

' Navigates to the given URL if it is valid.
Private Sub Navigate(ByVal address As String)

    If String.IsNullOrEmpty(address) Then Return
    If address.Equals("about:blank") Then Return
    If Not address.StartsWith("http://") And _
        Not address.StartsWith("https://") Then
        address = "http://" & address
    End If

    Try
        webBrowser1.Navigate(New Uri(address))
    Catch ex As System.UriFormatException
        Return
    End Try

End Sub

' Updates the URL in TextBoxAddress upon navigation.
Private Sub webBrowser1_Navigated(ByVal sender As Object, _
    ByVal e As WebBrowserNavigatedEventArgs) _
    Handles webBrowser1.Navigated

    toolStripTextBox1.Text = webBrowser1.Url.ToString()

End Sub

Remarks

The WebBrowser control navigates to a new document whenever one of the following properties is set or methods is called:

Handle the Navigated event to receive notification when the WebBrowser control has navigated to a new document. When the Navigated event occurs, the new document has begun loading, which means you can access the loaded content through the Document, DocumentText, and DocumentStream properties. Handle the DocumentCompleted event to receive notification when the WebBrowser control finishes loading the new document.

You can also receive notification before navigation begins by handling the Navigating event. Handling this event lets you cancel navigation if certain conditions have not been met, for example, the user has not completely filled out a form.

For more information about handling events, see Handling and Raising Events.

Applies to

See also