Add element to html using htmlagilitypack

c# html html-agility-pack

Question

How do i insert another tag after a specific tag, and remove a tag

example i have this html

<p class="cs40314EBF"><span class="cs1B16EEB5">This is an ordinary text.</span></p>

and this is the possible output

<p class="cs40314EBF"><b>This is an ordinary text.</b></p>

this is my code

HtmlDocument doc = new HtmlDocument();
                doc.Load(htmlLocation);
foreach (var item in doc.DocumentNode.Descendants())
{

   if (item.Name == "span")
   {
      HtmlNode div = doc.CreateElement("b");
      //what do i need to do here?
    }
}

i did a research and found this

http://www.nudoq.org/#!/Packages/HtmlAgilityPack/HtmlAgilityPack/HtmlNode/M/InsertBefore

but i can't make it work.

i can't use

if (item.Name == "span")
   {

      item.Name = "newtag";
   }

because i need the value of the class. to decide which tag am i going to use

Accepted Answer

Please check the below code, you need to set InnerHtml and save Html document by calling save method doc.Save(yourfilepath).

if (item.Name == "span")
{
  HtmlNode div = doc.CreateElement("b");
  div.InnerHtml = "Hello world";
  item.AppendChild(div);
  doc.Save(yourfilepath);
}

Popular Answer

Can you try this?

var doc1 = new HtmlAgilityPack.HtmlDocument();
    doc1.LoadHtml("<p class=\"cs40314EBF\"><span class=\"cs1B16EEB5\">This is an ordinary text.</span></p>");

    foreach (var item in doc1.DocumentNode.Descendants())
    {
        if (item.Name == "span")
        {
            HtmlNode b = doc.CreateElement("b");
            b.InnerHtml = item.InnerText;
            item.ParentNode.AppendChild(b);
            item.Remove();
        }
    }



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Licensed under: CC-BY-SA with attribution
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Is this KB legal? Yes, learn why