// Create the xml document containe            XmlDocument doc = new XmlDocument();// Create the XML Declaration, and append it to XML document            XmlDeclaration dec = doc.CreateXmlDeclaration("1.0", null, null);            doc.AppendChild(dec);// Create the root element            XmlElement root = doc.CreateElement("Library");            doc.AppendChild(root);

             // Create Books            // Note that to set the text inside the element,            // you use .InnerText instead of .Value (which will throw an exception).            // You use SetAttribute to set attribute            XmlElement book = doc.CreateElement("Book");            book.SetAttribute("BookType", "Hardcover");

             XmlElement title = doc.CreateElement("Title");            title.InnerText = "Door Number Three";

             XmlElement author = doc.CreateElement("Author");            author.InnerText = "O'Leary, Patrick";

             book.AppendChild(title);            book.AppendChild(author);            root.AppendChild(book);

             string xmlOutput = doc.OuterXml;

             //sonuc asagidaki gibi olacaktir...            //<?xml version="1.0"?>            //<Library>            //    <Book BookType="Hardcover">            //        <Title>Door Number Three</Title>            //        <Author>O'Leary, Patrick</Author>            //    </Book>            //</Library>