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sherihan — Fri, 07 Jun 2013 05:51:51 GMT

can we use HTML Agility Pack to extract data from asp.net web items like web pages, stile sheets etc?

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ParitoshSoni — Sat, 01 Jun 2013 13:03:51 GMT

I am not able to Load pages with different extensions like .cms. What can be the problem? or it is not supported?

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eljoker2k — Tue, 29 Jan 2013 11:53:44 GMT

is there documentation or i have to discover myself ?

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MikePanter — Tue, 30 Oct 2012 01:35:42 GMT

After fixing the bug in the example (as per rbaettler's comment), I have had no trouble using the Html Agility Pack at all. So far it seems to do what it says on the tin, which is to allow you to parse HTML documents using xpath expressions, or just navigate the html dom directly. Nice, thanks!

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Dheeraj2012 — Wed, 12 Sep 2012 12:40:29 GMT

i am using HAP ,i want know why i am not able to get the child node of a selected node, for example if i select a form tag using .SelectSingleNode() which successfully returns me correct form(checked by ID) but with no child node , please help me to find a way to select form tag with its child node . Thank you

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valgussev — Fri, 24 Aug 2012 11:47:08 GMT

I figured it out... i have used VS 2010 C++ but now i'm using VB 2010 and everything works great. Which are you use?

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valgussev — Fri, 24 Aug 2012 09:06:38 GMT

Hi, can you help me with a problem of adding Html Agility Pack? I've tried to use it via Visual Studio and qt creator, but every time when i add this lines using System; using System.Collections.Generic; using System.Linq; using System.Text; using HtmlAgilityPack; i have errors like 'HtmlAgilityPack' : symbol cannot be used in a using-declaration. Via which program you usually add Html Agility Pack?

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mcap — Thu, 09 Aug 2012 01:45:29 GMT

using System; using System.Collections.Generic; using System.Linq; using System.Text; using HtmlAgilityPack; namespace HtmlAgility { class Program { static void Main(string[] args) { HtmlDocument doc = new HtmlDocument(); doc.Load("file.htm"); foreach (HtmlNode link in doc.DocumentNode.SelectNodes("//a[@href]")) { HtmlAttribute att = link.Attributes["href"]; att.Value = "http://www.google.com"; } doc.Save("file.htm"); } } }

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justin_romaine — Wed, 01 Aug 2012 07:57:00 GMT

HtmlDocument doc = new HtmlDocument(); doc.Load("file.htm"); foreach(HtmlNode link in doc.DocumentElement.SelectNodes("//a[@href"]) { HtmlAttribute att = link["href"]; att.Value = FixLink(att); } doc.Save("file.htm"); This does not compile. Nor Document element. What am i missing?

Updated Wiki: Home

DarthObiwan — Wed, 11 Jul 2012 02:30:04 GMT

Attention to get the latest Official Html Agility Pack releases please use the Nuget Package

Get the latest Html Agility Pack updates at our new Twitter feed @htmlagilitypack

What is exactly the Html Agility Pack (HAP)?

This is an agile HTML parser that builds a read/write DOM and supports plain XPATH or XSLT (you actually don't HAVE to understand XPATH nor XSLT to use it, don't worry...). It is a .NET code library that allows you to parse "out of the web" HTML files. The parser is very tolerant with "real world" malformed HTML. The object model is very similar to what proposes System.Xml, but for HTML documents (or streams).

Html Agility Pack now supports Linq to Objects (via a LINQ to Xml Like interface). Check out the new beta to play with this feature

Sample applications:

Page fixing or generation. You can fix a page the way you want, modify the DOM, add nodes, copy nodes, well... you name it.
Web scanners. You can easily get to img/src or a/hrefs with a bunch XPATH queries.
Web scrapers. You can easily scrap any existing web page into an RSS feed for example, with just an XSLT file serving as the binding. An example of this is provided.

There is no dependency on anything else than .Net's XPATH implementation. There is no dependency on Internet Explorer's MSHTML dll or W3C's HTML tidy or ActiveX / COM object, or anything like that. There is also no adherence to XHTML or XML, although you can actually produce XML using the tool. The version posted here on CodePlex is for the .NET Framework 2.0. If you need the old version, please go to the old page or drop me a note.

Examples - Code Examples

If you want to participate to the project - because that's the whole purpose of putting the source there, right - use the forums or drop me a note (simon underscore mourier at hotmail dot com)!

Happy coding, scraping, scanning, html-ing, xhtml-ing, etc... :^)
Simon Mourier.

Updated Wiki: Home

DarthObiwan — Wed, 11 Jul 2012 01:57:41 GMT

Attention to get the latest Official Html Agility Pack releases please use the Nuget Package

Get the latest Html Agility Pack updates at our new Twitter feed @htmlagilitypack

Page fixing or generation. You can fix a page the way you want, modify the DOM, add nodes, copy nodes, well... you name it.
Web scanners. You can easily get to img/src or a/hrefs with a bunch XPATH queries.
Web scrapers. You can easily scrap any existing web page into an RSS feed for example, with just an XSLT file serving as the binding. An example of this is provided.

New Comment on "Examples"

VigneshPT — Sun, 27 May 2012 04:22:25 GMT

Is there no library supported by the Windows Phone.?

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wronskiano40 — Mon, 30 Apr 2012 11:58:11 GMT

hello, but if I wanted to copy the url IMG (.jpg) address within this code as I do? code: <TABLE id=uezszu_24 class="uiGrid fbPhotosGrid" cellSpacing=0 cellPadding=0> <TBODY> <TR> <TD class="vTop"> <DIV class=Wrapper><A class="uiMediaThumb uiScrollableThumb uiMediaThumbHuge" href="www.cccc.com/index.php" name=43563463 rel=theater aria-label="photo" ajaxify="dsgdgbdfgr45y6ghd"><I style="BACKGROUND-IMAGE: url(http://www.fressdgf.com/image.jpg)"></I></A></DIV></TD> </TR> </TBODY> </TABLE>

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maudish — Sun, 01 Apr 2012 01:14:00 GMT

How to find the ID value of a particular value? e.g. Below is the string I obtain from a website and when the user selects a particular school from a list of schools, the ID of that school is to be captured for further processing. The part of html tag I need to look at is given below: <td class="Miles"> </td><td CLASS="InstDesc"><A href="JavaScript:MoreInfo('sch_info_popup.asp'+'?Type=Public'+'&ID=181134001822');">BATTLE GROUND MIDDLE SCHOOL</a><br />6100 N 50 W, WEST LAFAYETTE, IN 47906<br />(765) 269-8140  -  <i>TIPPECANOE COUNTY COUNTY</i></td><td class="InstDetail">grades: <strong>6</strong> - <strong>8</strong></td> So when the user selects Battle Ground as school, my program should be able to figure out the ID 181134001822 from above html.

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maudish — Sun, 01 Apr 2012 01:13:07 GMT

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renegade809 — Thu, 08 Dec 2011 21:14:31 GMT

This looks like a great tool, but I REALLY wish that you had a tutorial in vb.net that would help teach us how to properly use it!

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uppadhyayraj — Mon, 10 Oct 2011 06:34:31 GMT

Also it is not working with following code static void Main(string[] args) { HtmlAgilityPack.HtmlWeb web = new HtmlWeb(); HtmlAgilityPack.HtmlDocument doc = web.Load("http://www.google.com"); //doc.DocumentNode.SelectSingleNode("//*[@id=\"lst-ib\"]");//("/html/body/div[2]/form/div/div[2]/table/tbody/tr/td/table/tbody/tr/td/div/table/tbody/tr/td/table/tbody/tr/td[2]/div/input"); //System.Console.WriteLine(doc.DocumentNode.SelectSingleNode("//*[@id=\"lst-ib\"]").Id); foreach (HtmlNode link in doc.DocumentNode.SelectNodes("/html/body/div[2]/form/div")) { HtmlAttribute att = link.Attributes["id"]; System.Console.Write(att.Value); } System.Console.ReadKey(); }

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uppadhyayraj — Mon, 10 Oct 2011 06:27:55 GMT

Not able to get result from Xpath containing second element or attribute value, please provide the way to do this. Following is my code static void Main(string[] args) { HtmlAgilityPack.HtmlWeb web = new HtmlWeb(); HtmlAgilityPack.HtmlDocument doc = web.Load("http://www.google.com"); //System.Console.WriteLine(doc.DocumentNode.SelectSingleNode("//*[@id=\"lst-ib\"]").Id); //This is not working as well foreach (HtmlNode link in doc.DocumentNode.SelectNodes("//*[@id=\"gbw\"]")) { HtmlAttribute att = link.Attributes["id"]; System.Console.Write(att.Value); } System.Console.ReadKey(); }

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teljj001 — Thu, 14 Apr 2011 22:49:05 GMT

@lennymail, xpath doesn't need a selector on each level - what you're after is the descendent axis. This is represented by two slashes ("//"). For example to get all form tags below body, you could use: /html/body//form - or, equally: //form. XPath is actually well suited to the task once you understand it. That said, the Sizzle engine is better adapted to HTML specifically rather than being a general XML solution.

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JoeO — Thu, 24 Mar 2011 17:01:37 GMT

The issue of the documentation not displaying in the HtmlAgilityPack.Documentation.chm is that the CHM file contains JavaScript code. Windows 7 blocks code that has been downloaded from the web. To make the CHM file function correctly you need to right-click on the file and choose the "Properties" command. In the "Properties" dialog box, at the bottom of the "General" tab, click the "Unblock" button. That should fix the problem.