Rimuovi tag HTML in stringa

Question

Come rimuovere i tag HTML dalla stringa seguente?

<P style="MARGIN: 0cm 0cm 10pt" class=MsoNormal><SPAN style="LINE-HEIGHT: 115%; 
FONT-FAMILY: 'Verdana','sans-serif'; COLOR: #333333; FONT-SIZE: 9pt">In an 
email sent just three days before the Deepwater Horizon exploded, the onshore 
<SPAN style="mso-bidi-font-weight: bold"><b>BP</b></SPAN> manager in charge of 
the drilling rig warned his supervisor that last-minute procedural changes were 
creating "chaos". April emails were given to government investigators by <SPAN 
style="mso-bidi-font-weight: bold"><b>BP</b></SPAN> and reviewed by The Wall 
Street Journal and are the most direct evidence yet that workers on the rig 
were unhappy with the numerous changes, and had voiced their concerns to <SPAN 
style="mso-bidi-font-weight: bold"><b>BP</b></SPAN>’s operations managers in 
Houston. This raises further questions about whether <SPAN 
style="mso-bidi-font-weight: bold"><b>BP</b></SPAN> managers properly 
considered the consequences of changes they ordered on the rig, an issue 
investigators say contributed to the disaster.</SPAN></p><br/> 

Sto scrivendo su Asponse.PDF, ma i tag HTML sono visualizzati nel PDF. Come posso rimuoverli?

Answer 1

Attenzione:This does not work for all cases and should not be used to process untrusted user input.

using System.Text.RegularExpressions; 
... 
const string HTML_TAG_PATTERN = "<.*?>"; 

static string StripHTML (string inputString) 
{ 
    return Regex.Replace 
    (inputString, HTML_TAG_PATTERN, string.Empty); 
} 

Answer 2

si dovrebbe usare il HTML Agility Pack:

HtmlDocument doc = ... 
string text = doc.DocumentElement.InnerText;