Please help me to extract some information from website.

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All day long i was trying to get familiar with HTML Agility Pack.
I am just learning C#.
Website is www.tikr.ru
I need main quote - which is 1519.95 for today.
I even got XPath expression for it, which is //*[@id="csPrice"] using FireBug for Firefox.
I can't understand what's wrong with this code.

C#

static void Main(string[] args)
{
    var webGet = new HtmlWeb();
    var document = webGet.Load("http://www.tikr.ru");
    var prices = from lnks in document.DocumentNode.Descendants()
          where lnks.Name == "//*[@id='csPrice']"
          select new { Price = lnks.Attributes["csPrice"].Value};

    foreach(var item in prices)
    {
        string message = "The Price is: " + item.Price.ToString();
        Console.WriteLine(message);
        Console.ReadLine();
    }
}

Posted 20-Sep-11 7:50am

alex11230

Updated 20-Sep-11 7:57am

v2

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2 solutions

Solution 2

Thank you very much. This is very useful reply!!! I think it will be helpful for other users also.

Posted 20-Sep-11 16:22pm

alex11230

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Ajit Hegde · Accepted Answer · 2011-09-20T08:31:00

This will do your work

C#

void GetQuote()
{
            WebClient wb = new WebClient();
            string htmldoc= wb.DownloadString("http://www.tikr.ru/");
            HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
            doc.LoadHtml(htmldoc);
            HtmlAgilityPack.HtmlNode node = doc.DocumentNode.SelectSingleNode("//span[@id=\"csPrice\"]");
            string quote = node.InnerText;
}

Here the 'quote' directly displays the today's quote i.e 1519.95 .

:)