How to take information from HTML file in C#?

Question

0.00/5 (No votes)

See more:

Hello!

I would like to create one string a[4] from span class="c" and class="c2". a[0] = class="c"; a[1] = 0; a[2] = class="c2".
At this time my string contains only a[1] and a[2]. Please, help?

Here is an example of html code:

HTML

<div class="a">

<div class="b">
<span class="c">...
</span>
</div>


<div class="b1">...
</div>

<div class="b2">...
<span class="c">
</span>
</div>


</div>

What I have tried:

C#

var inner1 = doc.DocumentNode.SelectSingleNode("//div[@ class='a']");

var nodes3 = inner1.SelectNodes("//span[@ class='c']");

foreach (HtmlAgilityPack.HtmlNode item3 in nodes3)
                {
                    shipping_flag[i4] = item3.InnerText;
                   

                    shipping_array = (string[])shipping_flag.ToArray();
                    i4++;


                }

Posted 27-Jun-18 7:15am

Member 12268183

Updated 27-Jun-18 8:27am

Richard MacCutchan

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Liktor Janos · Accepted Answer · 2018-06-27T08:29:00

I'll try to help you, however I'm a little puzzled about your explanation and your foreach block.
What do you like to achieve?
Extract all the SPAN elements into an array?
Count them?

EDIT:
Ok, i think I got it. I hope, at least :)
Just to be sure, are you like to get an output array like this:

C#

string[] shipping_array = new string[]
{
    "class=""c""",
    "0",
    "class=""c2""",
    null //why did not you define this item?
};

It seems to be a little inconsistent, however I don't know the backgrounds.
So, my next questions are:
* From where comes the '2' character in the third array element? It is a counter of found 'c' classes?
* Do you not defined the fourth array element. Why? There is any difference between short spans?

EDIT:
Try something similar:

C#

var results = new List<string>();
var divs = doc.DocumentNode.SelectNodes("//div");
foreach (var div in divs)
    results.Add(div.SelectNodes("span[@class='c']") == null ? "0" : "class=\"c\"");