iso-8859-1 string to Unicode string

Question

i get html source of page with this line of code

WebClient client = new WebClient();
string sPage = client.DownloadString(url); 

page code package is iso-8859-1

but exist unicode string like below in html source

<span title="&#1590;&#1575;&#1601;&#1607;"

how can i convert this code to Unicode string in c# ?

Answer 1

 string s = HttpUtility.HtmlDecode(@"<span title=""&#1590;&#1575;&#1601;&#1607;");