Using HTML agility pack to select a node.

Question

Hi Guys,Ok I am using html agility pack.I am using the link below as the webpage reference. I was to return the total number of search matches (in this case 31) into my project.

http://www.brokerforum.com/electronic-components-search-en.jsa?originalFullPartNumber=45678&x=77&y=9&hasNoSearchCriteria=false

The html that I need to drill down to is as follows...

<div class="resultsDescription">
   <p> Results <span>1-25</span> for 45678 (of <span>31</span>)</p>
</div>

My code so far is as follows.....

  HtmlWeb hw = new HtmlWeb();
            HtmlAgilityPack.HtmlDocument doc = hw.Load("http://www.brokerforum.com/electronic-components-search-en.jsa?originalFullPartNumber=45678&x=77&y=9&hasNoSearchCriteria=false");
            HtmlNode linkNodes = doc.DocumentNode.SelectSingleNode("//div[@class=\"resultsDescription\"]/span");

            txtDeleteAfter.Text = linkNodes.ToString();

Many Thanks,

Dean

Answer 1

Use two slashes before span

"//div[@class=\"resultsDescription\"]//span"

or add /p

"//div[@class=\"resultsDescription\"]/p/span"

Answer 2

Ok i did that and my textbox became populated with the following string.... "HtmlAgilityPack.HtmlNode"

Answer 3

linkNodes.InnerText

Answer 4

Getting closer, of the below.....

<div class="resultsDescription">
   <p> Results <span>1-25</span> for 45678 (of <span>31</span>)</p>
</div>

The result im now getting is ......1-25

How can I navigate to the 31?

Answer 5

You are using the SelectSingleNode method, that gives the one value.

Instead, you should use the SelectNodes, that will give the collection. Then iterate.

HtmlNodeCollection linkNodes = doc.DocumentNode.SelectNodes("//div[@class=\"resultsDescription\"]//span");

foreach (var node in linkNodes)
    txtDeleteAfter.Text += node.InnerText;

 

Sorry for my bad English.

Answer 6

Ok so does this mean it will set the textbox to

1-25

but then overwrite it with

31

as it iterates through?

Your English is fine.