c# node select troubles.

[vorticalbox]

So trying to make use of XML, in this case, its a proxy XML from http://www.xroxy.com/proxyrss.xml.

 

but when trying to select the nodes:

 

 XmlDocument doc = new XmlDocument();
doc.Load("http://www.xroxy.com/proxyrss.xml");
XmlNodeList nodelist = doc.SelectNodes("/channel/item/prx:proxy");
foreach(XmlNode node in nodelist)
{
    var ip = node.SelectSingleNode("prx:ip").InnerText;
    var port = node.SelectSingleNode("prx:port").InnerText;
    proxyList.AppendText(ip+":"+port+"\n");
}

I am getting this error

 

System.Xml.XPath.XPathException: 'Namespace Manager or XsltContext needed. This query has a prefix, variable, or user-defined function.'
 

I assume it's because of the ':' in the name but I have no idea how to fix it.

 

 

[DXMember]

Try something like this:

XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
nsmgr.AddNamespace("ab", "http://www.lucernepublishing.com");
XmlNode book = doc.SelectSingleNode("//ab:book", nsmgr);

https://msdn.microsoft.com/en-us/library/h0hw012b(v=vs.110).aspx

[vorticalbox]

22 minutes ago, DXMember said:

Try something like this:

 

XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
nsmgr.AddNamespace("ab", "http://www.lucernepublishing.com");
XmlNode book = doc.SelectSingleNode("//ab:book", nsmgr);

 

https://msdn.microsoft.com/en-us/library/h0hw012b(v=vs.110).aspx

Thanks solves this with 

 

XmlDocument doc = new XmlDocument();
            doc.Load("http://www.xroxy.com/proxyrss.xml");
            XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
            nsmgr.AddNamespace("prx", "http://www.proxyrss.com/content");
            XmlNodeList nodelist;
            XmlElement root = doc.DocumentElement;
            nodelist = root.SelectNodes("//prx:proxy", nsmgr);
            foreach (XmlNode node in nodelist)
            {
                var ip = node.SelectSingleNode("prx:ip", nsmgr).InnerText;
                var port = node.SelectSingleNode("prx:port", nsmgr).InnerText;
                proxyList.AppendText(ip + ":" + port + "\n");
            }