Html Agility Pack - Knowledge Base (KB)
172 results in tag: xpath
html Agility Pack for selecting attribute values
I'm trying to retrieve a specific image from a html document, using html agility pack and this xpath:...//div[@id='topslot']/a/img/@src ...As far as I can see, it finds the src-attribute, but it returns the img-tag. Why is that?...I would expect the Inner...
asked by Vegar
HtmlAgilityPack does not pick childNodes as intended.
I am attempting to use the HtmlAgilityPack library to parse some links in a page, but I am not seeing the results I would expect from the methods. In the following I have a HtmlNodeCollection of links. For each link I want to check if there is an image n...
asked by Sheff
The example for altering links in HtmlAgilityPack does not work. How do I go about doing this?
The example on ...codeplex... is this :...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....
asked by arri.io
proper xpath html nested tables agility pack
Assuming nested tables don't have unique attributes ( id , class or anything else ) to get the required one via ...doc.DocumentNode.SelectSingleNode("//table[@width='500']") ...Does XPath prohibit using table several times in its path ?...foreach (Html...
asked by MicMit
Is there a way to address the issue in HtmlAgilityPack when an html tag isn't closed?
well i have the following problem.... the html i have is malformed and i have problems with selecting nodes using html agility pack when this is the case.... the code is below:...string strHtml = @" <html> <div> <p><strong>Elem_A</strong>String_A1_2...
asked by Karim
XPath "previously following siblings"
I'm trying to select elements (a) with XPath 1.0 (or possibly could be with Regex) that are following siblings of particular element (b) but only preceed another b element....<img><b>First</b><br> <img> <a href="/first-href">First H...
asked by Ondrej Stastny
Html Agility Pack returns all attribute values for a particular tag.
I want to get all values of 'id' attribute of 'span' tag with html agility pack. But instead of attributes I got tags themself. Here's the code ... private static IEnumerable<string> GetAllID() { HtmlDocument sourceDocument = ne...
asked by StuffHappens
Using XPath, select all links from an HTML table (and HtmlAgilityPack)
What I am trying to achieve is to extract all links with a href attribute that starts with http://, https:// or /. These links lie within a table (tbody > tr > td etc) with a certain class. I thought I could specify just the the a element without the whol...
asked by Adam Asham
XPATH, HtmlAgilityPack, and Text Extraction
I had been trying to extract links from a class called "tim_new" . I have been given a solution as well....Both the solution, snippet and necessary information is given ...here...The said XPATH query was ..."//a[@class='tim_new']..., my question is, how d...
asked by Soham
HtmlAgilityPack has a problem processing the children of a node.
I'm having a problem parsing the input tag children of a form in html. I can parse them from the root using //input[@type] but not as children of a specific node. ...Here's some code that illustrates the problem:...private const string HTML_CONTENT = ...
asked by SteveG
When using HTML Agility Pack to query HTML for ID, an exception occurs.
I'm using the HTML Agility pack to parse an ASPX file inside Visual Studio....I'm searching for an element with a specified ID attribute....The code I'm using is:...var html = new HtmlAgilityPack.HtmlDocument(); html.LoadHtml(docText); if (html.DocumentNo...
asked by awj
Can I choose a node whose next (or previous) sibling meets certain criteria using XPath?
I am reformatting an HTML document using the Agility Pack, and I've run into a limitation of my understanding of XPath....In the document I'm working with, the following is a common construct:...128...2...Which is built like this:...128<img src="" style="...
asked by John Gietzen
Every HTML table row's first and second cell
I'm trying to get just some specific cells in each row using HTMLAgilityPack....foreach (HtmlNode row in ContentNode.SelectNodes("descendant::tr")) { //Do something to first cell //Do something to second cell } ...There are more cells, and each ce...
asked by peirix
Using XPATH, get the meta tag attribute using HTML Agility Pack.
META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1" /> TITLE>Microsoft Corporation META http-equiv="PICS-Label" content="(PICS-1.1 "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0))" /> META NAME="KEYWORDS" CONTENT="p...
asked by Eugene
"Expression must evaluate to a node-set." error while using XPath
I'm having trouble retrieving a single node by its explicit XPath that I have already found by other ways. I have ...node... and I can get its XPath, but when I try to retrieve that same node again this time via node.XPath it gives the "expression must e...
asked by Snives
How do I count the number of SelectedNodes in C# using XPath?
I am using HTMLAgilityPack in my application, and i want to get the item(node) count of SelectedNodes as the code below:...HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument(); doc.LoadHtml(webBrowser1.DocumentText); var tagListe = doc.Do...
asked by caglaror
HTMLAgilityPack XPath syntax to extract URL from HTMLNode?
What is the proper ...XPath... syntax to grab the value of the ...href... attribute from the following ...HTMLNode...:...<a target="_blank" class="monkeys" href="http://someurl.com" id="123"> <span class="title">Monkeys are flying all over!</span> </a...
asked by Darth Continent
HtmlAgilityPack does not support XPath expressions.
I know it may be of my noobness in XPath, but let me ask to make sure, cuz I've googled enough....I have a website and wanna get the news headings from it: www.farsnews.com (it is Persian)...Using FireBug and FireXpath extensions under firefox and by hand...
asked by user433556
preceding-sibling Xpath (using HtmlAgilityPack and VB)
Im using HtmlAgilityPack/HAP so that I can use Xpath with HTML documents....I need help selecting the preceding-sibling of ...div class="address"... in this url: ...www.yellowpages.ca/search/si-geo/1/sh/Ottawa,+ON... The sibling that I want is ...h3 class...
asked by Datadayne
Find Comment Node in HTML Agility Pack
I am scraping a website that uses Javascript to dynamically populate the content of a website with the Html Agility pack....Basically, I was searching for the XPATH ..."\\div[@class='PricingInfo']"..., but that div node was being written to the DOM via Ja...
asked by Abe
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