C# and HtmlAgilityPack encoding problem

Question

WebClient GodLikeClient = new WebClient();
HtmlAgilityPack.HtmlDocument GodLikeHTML = new HtmlAgilityPack.HtmlDocument();

GodLikeHTML.Load(GodLikeClient.OpenRead("www.alfa.lt");

So this code returns: "Skaitytojo klausimas psichologui: kas lemia homoseksualumÄ…? - NaujienÅ³ portalas Alfa.lt" instead of "Skaitytojo klausimas psichologui: kas lemia homoseksualumą? - Naujienų portalas Alfa.lt".

This webpage is encoded in 1257 (baltic), but textBox1.Text = GodLikeHTML.DocumentNode.OuterHtml; returns the distorted text - baltic diacritics are transformed into some weird several characters long strings :(

And yes, I've tried the HtmlAgilityPack forums. They do suck.

P.S. I'm no programmer, but I work on a community project and I really need to get this code working. Thanks ;}

score 25 · Accepted Answer · edited May 23 '17 at 12:25

25

Actually the page is encoded with UTF-8.

GodLikeHTML.Load(GodLikeClient.OpenRead("http://www.alfa.lt"), Encoding.UTF8);

will work.

Or you could use the code in my SO answer which detects encoding from http headers or meta tags, en re-encodes properly. (It also supports gzip to minimize your download).

With the download class your code would look like:

HttpDownloader downloader = new HttpDownloader("http://www.alfa.lt",null,null);
GodLikeHTML.LoadHtml(downloader.GetPage());

edited May 23 '17 at 12:25

Community

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answered Aug 10 '10 at 19:32

Mikael Svenson

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Yup, that did the job :D Wow, quite simple, isn't it. Thanks! – August Aug 11 '10 at 20:27
2

many thanks, got crazy characters like á or whatever, now it is working fine – Andreas Reiff Aug 26 '14 at 10:16
Dehell is GodLikeHTML? Is this a synonym or am I actually looking for class with that name? – helmesjo Nov 10 '14 at 15:49
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It's a variable from the original question – Mikael Svenson Nov 10 '14 at 19:43
How to use a Proxy and DefaultCredentials with your class? – Drag and Drop Mar 14 '17 at 15:45
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@PierreLebon I suggest you take a look at the availble properties of the HttpWebRequest class and you will be amazed :) – Mikael Svenson Mar 14 '17 at 19:30
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I made an overload on the constructor and added into the get page request. but now future reader will have a solid hint on how to do it. Because when fighting against encoding you can miss simple thing. – Drag and Drop Mar 15 '17 at 13:07

score 16 · Answer 2 · answered Oct 22 '12 at 15:01

16

I had a similar encoding problems. I fixed it, in the most current version of HtmlAgilityPack, by adding the following to my WebClient initialization.

var htmlWeb = new HtmlWeb();
htmlWeb.OverrideEncoding = Encoding.UTF8;
var doc = htmlWeb.Load("www.alfa.lt");

answered Oct 22 '12 at 15:01

craastad

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Best answer (why to use webclient when you can do it by only using HTMLAgilityPack – a1204773 Jan 02 '13 at 03:43

score 6 · Answer 3 · edited Jan 10 '21 at 14:48

6

UTF8 didn't work for me, but after setting the encoding like this, most pages i was trying to scrape worked just wel:

web.OverrideEncoding = Encoding.GetEncoding("ISO-8859-1");

Perhaps it might help someone.

edited Jan 10 '21 at 14:48

Irvin Dominin

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answered Jun 12 '13 at 09:40

Tys

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Thanks! It was weird, I had been debugging my program to do HtmWeb web = new HtmlWeb(); then doc = web.Load(nextPageUrl); and it had stopped working. I had been testing for several days. Why would it stop working? I had a bug that threw a custom exception. But ever after that, even after restarting my app from debugger several times it was giving me that weird error. Your solution fixed mine. I was looking for a way, but didn't see it. – John Foll Jan 10 '22 at 01:03

score 5 · Answer 4 · answered Oct 02 '11 at 18:45

5

 HtmlAgilityPack.HtmlDocument doc = new HtmlDocument(); 
 StreamReader reader = new StreamReader(WebRequest.Create(YourUrl).GetResponse().GetResponseStream(), Encoding.Default); //put your encoding            
 doc.Load(reader);

hope it helps :)

answered Oct 02 '11 at 18:45

Sagiv Ofek

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score 1 · Answer 5 · answered Aug 10 '10 at 19:07

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try to change that to GodLikeHTML.Load(GodLikeClient.OpenRead("www.alfa.lt"), Encoding.GetEncoding(1257));

answered Aug 10 '10 at 19:07

Ilia G

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sorry, I've misguided you - it was encoded in utf. Thanks for your help though. – August Aug 11 '10 at 20:28

score 1 · Answer 6 · answered Feb 07 '16 at 15:12

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if all of those post doesn't work, Just use this: WebUtility.HtmlDecode("Your html text");

answered Feb 07 '16 at 15:12

Ebleme

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score 1 · Answer 7 · answered Apr 01 '20 at 15:00

This seemed to remove the need to know anything about encoding for me:

using System;
using HtmlAgilityPack;
using System.Net;
using System.IO;


    class Program
    {
        static void Main(string[] args)
        {
            Console.Write("Enter the url to pull html documents from: ");

            string url = Console.ReadLine();

            HtmlDocument document = new HtmlDocument();

            var request = WebRequest.Create(url);
            var response = request.GetResponse();

            using (var reader = new StreamReader(response.GetResponseStream()))
            {
                document.LoadHtml(reader.ReadToEnd());
            } 
        }
    }

score 0 · Answer 8 · answered Apr 07 '15 at 09:55

This is my solution

 HttpWebRequest request =(HttpWebRequest)WebRequest.Create("http://www.sina.com.cn");
HttpWebResponse response =(HttpWebResponse)request.GetResponse();
long len = response.ContentLength;
byte[] barr = new byte[len]; 
response.GetResponseStream().Read(barr, 0, (int)len); 
response.Close();
string data = Encoding.UTF8.GetString(barr); 
var encod = doc.DetectEncodingHtml(data);
string convstr = Encoding.Unicode.GetString(Encoding.Convert(encod, Encoding.Unicode, barr));
doc.LoadHtml(convstr);

score 0 · Answer 9 · answered Nov 11 '22 at 11:25

0

Even simpler (WebClient seems not to have any OverrideEncoding feature):

using (WebClient webClient = new WebClient())
{
    webClient.Encoding  = Encoding.UTF8;
    // do whatever you want...
}

(works for me in .NET Framework 4.8)

answered Nov 11 '22 at 11:25

Stanislav Koncebovski

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C# and HtmlAgilityPack encoding problem

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