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I want c# code for link extractor,like
if i give input as a www.yahoo.com
then my output should be all intranal lnks on www.yahoo.com,which should save in one text file.

i know i have to use LinksExtractor class but not getting how to do

e.g. ip:www.yahoo.com
o/p:
www.yahoo.com/sports
www.yahoo.com/Business
Posted

1 solution

Let's start :)

Create a public List links:

C#
List<string> links = new List<string>();</string></string>


private void FindLinks(string url)
{
   links.Clear();

   WebBrowser webBrowser1 = new WebBrowser();
   webBrowser1.Navigate(url);
   webBrowser1.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(webBrowser1_DocumentCompleted);
}


void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
   

   if (((WebBrowser)sender).Document != null)
   {
      HtmlElementCollection col = ((WebBrowser)sender).Document.GetElementsByTagName("a");

      foreach (HtmlElement elem in col)
      {
         if (elem.GetAttribute("href").StartsWith("http://"))
            links.Add(elem.GetAttribute("href"));
      }
   }
}


Call function using:
FindLinks(@"http://www.google.gr/");


All links will be in the List links
 
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Comments
BobJanova 5-Aug-11 10:40am    
'Internal links' means those within the same website, so the href might not start with http:// (a well designed website will have mostly relative links within the site). The OP is not clear about what exactly 'internal' means but I think your check is not correct for the stated problem.
UJimbo 5-Aug-11 11:46am    
I'll try later on without the startswith part and see how it behaves

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