This piece of code opens an xml file containing a list of IP addresses.
If it finds elements, it will load the element values into an ArrayList.
ArrayList ips = new ArrayList();
XmlTextReader reader = new XmlTextReader(@"C:\inetpub\wwwroot\addressbook\iplist.xml");

// Read the Start Element
reader.ReadStartElement("ip_list");

// Read an attribute
reader.Read();
while (reader.Read()) 
{
	switch (reader.NodeType) 
	{
		case XmlNodeType.Element: // The node is an element.
			Console.Write("<" + reader.Name);
			Console.WriteLine(">");
			break;
		case XmlNodeType.Text: //Display the text in each element.
			ips.Add(reader.Value);
			break;
		case XmlNodeType. EndElement: //Display the end of the element.
			Console.Write("");
			break;
	}
}