Extract Message Subjects from Finance Message Board

This example shows how to use the Chilkat HTTP component to fetch the GOOG message board, convert it to XML, and then use Chilkat XML to iterate over each message link and extract each message subject. This example worked on 6-June-2005. Future changes in the HTML delivered by the source may break this code, but the purpose of the code is to demonstrate the ease of extracting information from HTML.

Chilkat.Http http = new Chilkat.Http();
http.UnlockComponent("HTTP 30-day trial");

// Make our HTTP client mimic Mozilla Firefox
http.MimicFireFox = true;

// Do not fetch from cache or save to cache.
http.FetchFromCache = false;
http.UpdateCache = false;
		
Chilkat.HtmlToXml conv = new Chilkat.HtmlToXml();
conv.UnlockComponent("Html-to-Xml 30-day trial");

// Get the HTML for the Google message board on Yahoo finance.		    
conv.Html = http.QuickGetStr("http://messages.yahoo.com/?action=q&board=GOOG");

// Convert it to XML and load it into Chilkat XML.
Chilkat.Xml xml = new Chilkat.Xml();
xml.LoadXml(conv.ToXml());

// Each message link has a hyperlink like this:
// <a href="/bbs?.mm=FN&action=m&board=1608859966&tid=goog&sid=1608859966&mid=221123">
Chilkat.Xml firstMsgLink = xml.SearchForAttribute(null,"a","href","*action=m*&mid=1");
Chilkat.Xml lastMsgLink = xml.SearchForAttribute(firstMsgLink,"a","href","*action=m*&mid=*");
Chilkat.Xml msgLink = xml.SearchForAttribute(lastMsgLink,"a","href","*action=m*&mid=*");

string subjects = "";
while (msgLink != null)
{
    string linkText = msgLink.GetChildContent("text");
    if (linkText.Equals("First")) break;
    subjects = subjects + linkText + "\r\n";
    
    // Scan for the next link.
    msgLink = xml.SearchForAttribute(msgLink,"a","href","*action=m*&mid=*");
}

MessageBox.Show(subjects);

Important: The download for this example does not contain the ChilkatDotNet.dll which
must be downloaded and installed separately at http://www.chilkatsoft.com/downloads.asp.
Once installed, add a reference to the DLL in the project by following the instructions at
http://www.example-code.com/vbdotnet/step2.asp