WebBrowser

鎖定

' 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

// 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)
{
    webBrowser1.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)
{
    webBrowser1.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 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();
}