I nedd to do a little variation of this code to make it works in WPF, here is the code:

1- I need to add the reference: Microsoft.mshtml (solution explorer / Referenes)

2- add using mshtml;

3- code for the event LoadCompleted (wbContenido = WebBrowser control)

private void wbContenido_LoadCompleted(object sender, NavigationEventArgs e)
{
mshtml.HTMLDocumentClass dom = (mshtml.HTMLDocumentClass)wbContenido.Document;
//Console.Write(dom.body.innerHTML);

IHTMLDocument2 doc2 = dom;// wbContenido.Document.DomDocument as IHTMLDocument2;
StringBuilder html = new StringBuilder(doc2.body.outerHTML);

var words = new[] { “Examen”, “passione” };
foreach (String key in words)
{
String substitution = “” + key + “”;
html.Replace(key, substitution);
}

doc2.body.innerHTML = html.ToString();
}

Alk.

“This is a HighLight Me please sample”.

My search word is “This is a HighLight Me please sample” and this should match the above exampe and ignoring the html element.

Alk.

A better solution I found, as I said before, was switching to an alreaady tested javascript function to hilite text.

To reverse hiliting the best way is to save the original content of the page, and when you need to remove hilighting you simply reassign old content to the innerHTML property.

alk.

alk.