Htmlagilitypack - Remove Script and Style

htmlagilitypack - remove script and style?

HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(html);

doc.DocumentNode.Descendants()
                .Where(n => n.Name == "script" || n.Name == "style")
                .ToList()
                .ForEach(n => n.Remove());

HtmlAgilityPack: Remove tags, Replace with whitespace

You're just removing the nodes. Instead of this you should replace those nodes with the new ones. This will replace your <script> and <style> nodes with a space symbol:

foreach (var node in doc.DocumentNode.SelectNodes("//script|//style").ToArray())
{
    var replacement = doc.CreateTextNode(" ");
    node.ParentNode.ReplaceChild(replacement, node);
}

Remove all strings in { } delimiter using Regex or Html Agility Pack in ASP.NET web forms

i have been using HtmlAgilityPack to load an web page and extract the text content only so when i'm loading the page and extract the text the css and javascript text also is extracted so i try this method of regex to remove the javascript and css from the output text by detect the { } delimiter but was hard so i try anther way and it work and much simpler by using the Descendants() from HtmlAgilityPack and my code is

 HtmlWeb web = new HtmlWeb();
 HtmlDocument doc = web.Load(url);
 doc.DocumentNode.Descendants()
                            .Where(n => n.Name == "script" || n.Name == "style" || n.Name == "#comment")
                            .ToList()
                            .ForEach(n => n.Remove());

            string s = doc.DocumentNode.InnerText;
            TextArea1.Value = Regex.Replace(s, @"\t|\n|<.*?>","");

and find this from :
THIS LINK

and every thing works now.

How to remove script tags from an HTML page using C#?

It can be done using regex:

Regex rRemScript = new Regex(@"<script[^>]*>[\s\S]*?</script>");
output = rRemScript.Replace(input, "");

How to comment out all script tags in an html document using HTML agility pack

Try this:

foreach (var scriptTag in htmlDocument.DocumentNode.SelectNodes("//script"))
        {
            var commentedScript = HtmlTextNode.CreateNode(string.Format("<!--{0}-->", scriptTag.OuterHtml));
            scriptTag.ParentNode.ReplaceChild(commentedScript, scriptTag);
        }

HtmlAgilityPack skip or remove nested table

// is an XPATH expression that means "scan all nodes and sub nodes". That's why //tr gets all tr below the root one.

If you just do parentTable.SelectNodes("tr") (or "./tr" which is equivalent), you will select all TR below the root one.

If you want to skip the first one, then you can add an XPATH filter on element's position() (an XPATH function):

var parentTableRows = parentTable.SelectNodes("tr[position() > 1]");

how to grab inside text using style information with htmlagilitypack

This is what I tried and got the output as desired.

    string text = @"
        <div class=""item - conditions""><font style=""vertical-align: inherit;""><font style=""vertical-align: inherit;"">New - 14 sold</font></font>
        </div>";

    HtmlDocument doc = new HtmlDocument();
    doc.LoadHtml(text);
    var htmlNode = doc.DocumentNode.SelectNodes("//font[@style='vertical-align: inherit;']");
    Console.WriteLine(htmlNode.First().InnerText);

Difference: What I did was, removed the 'contains' in the XPath query. Simply using, //font[@style='vertical...] gives you an array of all the possibilities. Using any of these to get the InnerText would give you the text that you are looking for.

// output: New - 14 sold

---

Related Topics