C# 4 and .NET 4

646 ❘ ChaPTer 24 netwOrkinG
Updating the form’s title with the title of the HTML page is easy. You just need to use the Navigated event
and update the Text property of the form:
private void webBrowser1_Navigated(object sender, EventArgs e)
{
this.Text = webBrowser1.DocumentTitle.ToString();
}
In this case, when the WebBrowser control moves onto another page, the Navigated event will fire, and this
will cause the form’s title to change to the title of the page being viewed. In some instances when working
with pages on the Web, even though you have typed in a specific address, you are going to be redirected to
another page altogether. You are most likely going to want to reflect this in the textbox (address bar) of the
form; to do this, you change the form’s text box based on the complete URL of the page being viewed. To
accomplish this task, you can use the WebBrowser control’s Navigated event as well:
private void webBrowser1_Navigated(object sender, WebBrowserNavigatedEventArgs e)
{
textBox1.Text = webBrowser1.Url.ToString();
this.Text = webBrowser1.DocumentTitle.ToString();
}
In this case, when the requested page has finished downloading in the WebBrowser control, the Navigated
event is fired. In your case, you simply update the Text value of the textBox1 control to the URL of the
page. This means that after a page is loaded in the WebBrowser control’s HTML container, and if the URL
changes in this process (for instance, if there is a redirect), then the new URL will be shown in the text box.
If you employ these steps and navigate to the Wrox web site (www.wrox.com), then you will notice that the
page’s URL will immediately change to www.wrox.com/WileyCDA/. This process also means that if the end
user clicks one of the links contained within the HTML view, then the URL of the newly requested page
will also be shown in the text box.
Now if you run the application with the preceding changes in place, you will find that the form’s title and
address bar work as they do in Microsoft’s Internet Explorer, as demonstrated in Figure 24-5.
figure 24-5
www.it-ebooks.info