html-agility-pack | 易学教程

Can I use Html Agility Pack To Parse HTML Fragment?

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问题 Can Html Agility Pack be used to parse an html string fragment? Such As: var fragment = "<b>Some code </b>"; Then extract all <b> tags? All the examples I seen so far have been loading like html documents. 回答1: If it's html then yes. string str = "<b>Some code</b>"; // not sure if needed string html = string.Format("<html><head></head><body>{0}</body></html>", str); HtmlDocument doc = new HtmlDocument(); doc.LoadHtml(html); // look xpath tutorials for how to select elements // select 1st <b>

Parsing tables, cells with Html agility in C#

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I need to parse Html code. More specifically, parse each cell of every rows in all tables. Each row represent a single object and each cell represent different properties. I want to parse these to be able to write an XML file with every data inside (without the useless HTML code). I have successfully been able to parse each column from the HTML file but now I don't know what my options are for writing this to an XML file. I am baffled. HTML: <tr><tr> <td class="statBox" style="border-width:0px 1px 1px 0px; background-color: #FFFFFF"> 1 </td> <td class="statBox" style="border-width:0px 1px 1px

Add a doctype to HTML via HTML Agility pack

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问题 I know it is easy to add elements and attributes to HTML documents with the HTML agility pack. But how can I add a doctype (e.g. the HTML5 one) to an HtmlDocument with the html agility pack? Thank you 回答1: The Html Agility Pack parser treats the doctype as a comment node. In order to add a doctype to an HTML document simply add a comment node with the desired doctype to the beginning of the document: HtmlDocument htmlDoc = new HtmlDocument(); htmlDoc.Load("withoutdoctype.html");

How to fix html tags(which is missing the <open> & <close> tags) with HTMLAgilityPack

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问题 I have an html with <div><h1> hello Hi</div> <div>hi </p></div> Required Output : <div><h1> hello </h1></div> <div><p>hi </p></div> Using HTML agility pack is it possible to fix this kind of similar issues with missing closing and opening tags? 回答1: The library isn't intelligent enough to create the opening p where you put it, but it's intelligent enough to create the missing h1 . And in general, it creates valid HTML always, but not always the one you would expect. So this code: HtmlDocument

htmlagilitypack gzip encryption exception

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I'm having the exception throw gzip is not support. This is all i'm using the load the page, any idea on how to allow gzip? HtmlWeb hwObject = new HtmlWeb(); HtmlAgilityPack.HtmlDocument htmldocObject = hwObject.Load(siteURL); BrokenGlass You can download the page yourself, i.e. using a class derived from WebClient (or manually making a WebRequest and setting AutomaticDecompression ) public class GZipWebClient : WebClient { protected override WebRequest GetWebRequest(Uri address) { HttpWebRequest request = (HttpWebRequest)base.GetWebRequest(address); request.AutomaticDecompression =

Html Agility Pack - Remove element, but not innerHtml

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I can easily remove the element just by note.Remove() lik this: HtmlDocument html = new HtmlDocument(); html.Load(Server.MapPath(@"~\Site\themes\default\index.cshtml")); foreach (var item in html.DocumentNode.SelectNodes("//removeMe")) { item.Remove(); } But that removes the innerHtml as well. What if i only want to remove the tag, and keep the innerHtml? Example: <ul> <removeMe> <li> <a href="#">Keep me</a> </li> </removeMe> </ul> Any help would be appreciated :) HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument(); doc.LoadHtml(html); var node = doc.DocumentNode

HtmlAgilityPack and HtmlDecode

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问题 I am currently using HtmlAgilityPack with a console application to scrape a website. Since the html is encoded (it returns encoded characters like ' ) I have to decode before I save the content to my database. Is there a way to decode the returned html using HtmlAgilityPack without having to use HttpUtility.HtmlDecode? I want to avoid adding System.Web to my console application if possible. 回答1: The Html Agility Pack is equiped with a utility class called HtmlEntity . It has a static method

HtmlAgilityPack SelectNodes expression to ignore an element with a certain attribute

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I am trying to select nodes except from script nodes and a ul that has a class called 'relativeNav'. Can someone please direct me to the right path? I have been searching for this for a week and I can't find it anywhere. Currently I have this but it obviously selecting the //ul[@class='relativeNav'] as well. Is there anyway to put an NOT expression of it so that SelectNode will ignore that one? foreach (HtmlNode node in doc.DocumentNode.SelectNodes("//body//*[not(self::script)]/text()")) { Console.WriteLine("Node: " + node); singleString += node.InnerText.Trim() + "\n"; } Given an Html

HtmlAgilityPack: how to create indented HTML?

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So, I am generating html using HtmlAgilityPack and it's working perfectly, but html text is not indented. I can get indented XML however, but I need HTML. Is there a way? HtmlDocument doc = new HtmlDocument(); // gen html HtmlNode table = doc.CreateElement("table"); table.Attributes.Add("class", "tableClass"); HtmlNode tr = doc.CreateElement("tr"); table.ChildNodes.Append(tr); HtmlNode td = doc.CreateElement("td"); td.InnerHtml = "—"; tr.ChildNodes.Append(td); // write text, no indent :( using(StreamWriter sw = new StreamWriter("table.html")) { table.WriteTo(sw); } // write xml, nicely

How would I get the inputs from a certain form with HtmlAgility Pack? Lang: C#.net

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问题 Code can explain this problem much better than I can. I have also included alternate ways i've tried to do this. If possible, please explain why these other methods didn't work either. I've ran out of ideas, and sadly there aren't many examples for HtmlAgilityPack. I'm currently going through the documentation looking for more ideas though. One thing I noticed was the .nextSibling property, and was thinking I could use a while loop to go through the form until it found no next sibling or the