Simple html analyzer

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Hello, I want a simple html analyzer(in c#) which can get the contents of an html element. Let me explain: I want to download a page, get the contents of ".class1 .class2 #id1 div" and then display it to the user. Do you have any leads(besides System.Net.WebClient)?

P.S. So far I have found HTML agility pack which uses an xPath to get an element.

Posted 30-Aug-12 11:22am

mostwanted4

Updated 30-Aug-12 22:35pm

v3

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**AmitGajjar** · Answer 1 · 2012-08-30T16:05:00

Solution 2

Hi,

I think jQuery can get all the information from your given html control. you can get InnerHtml content from particular Div/Table through the ID/it's Associated Class.

Suppose you have HTML content as ,

XML

<div class="demo-container">
  <div class="demo-box">Demonstration Box</div>
</div>

Then you can extract Inner Div using,

JavaScript

$('div.demo-container').html();

And Result would be

HTML

<div class="demo-box">Demonstration Box</div>

(Above code is taken from jQuery[^])

But this can be possible if you already have hierarchy information to navigate in the html.

Hope i answered your query,
Thanks
-Amit Gajjar.

Posted 30-Aug-12 16:05pm

AmitGajjar

Comments

mostwanted4 31-Aug-12 4:28am

Thanks, this is the exact thing I want to do, but in c#(I forgot to mention it)

AmitGajjar 31-Aug-12 4:29am

if you have web application then you can get using jQuery, update hidden field with this value, and get it from C# :)

mostwanted4 31-Aug-12 4:34am

I don't have a web application I have a simple Windows Form in which I download the page as a string(using WebClient) and then I process it. It would be awesome to run jQuery in these conditions.

AmitGajjar 31-Aug-12 4:36am

check http://jint.codeplex.com/

mostwanted4 31-Aug-12 4:38am

Cool! Thanks ;)

AmitGajjar 31-Aug-12 4:39am

this works for javascript but don't have idea about jquery. but give me some time i am posting some other solution.

AmitGajjar 31-Aug-12 4:43am

You can use WebBrowser control and execute your html page along with jQuery in that control. WebBrowser.DocumentText property will give you your desired result.

Christian Graus · Answer 2 · 2012-08-30T11:24:00

Solution 1

You can use regex to parse a file if you know the tags you're looking for. XmlDocument also works, if its XHTML.

Posted 30-Aug-12 11:24am

Christian Graus

pramod.hegde · Answer 3 · 2012-08-30T19:59:00

Solution 3

Use LINQ to XML to achieve this.
For example:

C#

string htmlString = @"<html>
                        <body>
                          <p>hi</p>
                          <table>...</table>
                        </body>
                     </html>";

XDocument htmlDoc = XDocument.Parse(htmlString);

Now htmlDoc contains the DOM elements as XNode.
XNode (html tag) --> XNode (body tag) --> XNode(p tag), XNode(table tag)

Posted 30-Aug-12 19:59pm

pramod.hegde

Comments

mostwanted4 31-Aug-12 4:43am

Nice, but I'm afraid I'm dealing with HTML not XHTML

pramod.hegde 31-Aug-12 4:58am

This still works with HTML.

mostwanted4 31-Aug-12 9:11am

I tried it and it throws errors for tags like <link type="" rel="" href=""> where the tag is never closed.