making an XML call to WhoisAPI [closed]

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i just got an account at:

http://www.whoisxmlapi.com/index.php#/whois-api-doc.php?rid=1

ive never parsed XML with c#, how would i get the information in the <email> tag ?

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I know of three options:

• Linq to XML (.NET Framework 3.5)
• XmlDocument
• XmlReader

XmlDocument example:

XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
string email = doc.SelectSingleNode("/WhoisRecord/registrant/email").InnerText;

XmlReader example:

using (XmlReader reader = new XmlTextReader(new StringReader(xml)))
{
    reader.Read(); 
    reader.ReadStartElement("WhoisRecord");  
    reader.ReadStartElement("registrant");  
    reader.ReadStartElement("email");  
    reader.ReadString().Dump();
}