using System;
using System.Xml;
public class TestXMLWriter{
static void Main(string[] args)
{
XmlTextWriter writer = new XmlTextWriter("test.xml", new System.Text.ASCIIEncoding());
writer.Formatting = Formatting.Indented;
writer.Indentation = 4;
writer.WriteStartDocument();
writer.WriteComment("Comment");
writer.WriteStartElement("ElementName", "myns");
writer.WriteStartAttribute("prefix", "attrName", "myns");
writer.WriteEndAttribute();
writer.WriteElementString("ElementName", "myns", "value");
writer.WriteEndElement();
writer.WriteEndDocument();
writer.Flush();
writer.Close();
}
}