using System; 
using System.Collections; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Web; 
using System.Web.SessionState; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.HtmlControls; 
using System.Xml; 
using System.Xml.Xsl; 
using System.Xml.XPath; 
using System.IO;

namespace Samples
{ 
    public partial class _Default: System.Web.UI.Page 
    { 
        private void Page_Load(object sender, System.EventArgs e) 
        { 
            GetUsernameList(); 
        } 

        #region Web Form Designer generated code 
        override protected void OnInit(EventArgs e) 
        { 
            InitializeComponent(); 
            base.OnInit(e); 
        } 
         
        private void InitializeComponent() 
        { 
            this.Load += new System.EventHandler(this.Page_Load); 
        } 
        #endregion 

        private void GetUsernameList() 
        { 
            //Get the request query 
            string strQuery = Request["q"].ToString(); 

            //Create the XML-like string to be sent back to the request 
            string strXmlNames = ""; 
             
            //An arbitrary array of names that will be written to an XML Document. 
            string[] arrStrNames = new string[5]{"Ian Suttle", "John Doe", "Alex Wright", "Albert Einstein", "Sierra Tracy"}; 

            //Loop through the names, creating a psuedo XML element for each 
            foreach(string strName in arrStrNames) 
            { 
                //If the request matches the beginning of a name, then add it to the string 
                // otherwise it shouldn't be a valid match 
                if (strName.ToLower().Substring(0, strQuery.Length) == strQuery.ToLower()) 
                    strXmlNames += "<user><name>" + strName + "</name></user>"; 
            } 

            //Prepend and append the parent element 
            strXmlNames = "<?xml version=\"1.0\" ?><users>" + strXmlNames + "</users>";

	using (StreamWriter sw = new StreamWriter("TestFile.txt")) {
		sw.writeLine(strXmlNames);
		sw.writeLine("-----------------");
	}

            //Create an XmlDocument object to store the XML string that we created 
            XmlDocument xDoc = new XmlDocument(); 
            xDoc.LoadXml(strXmlNames); 

            //Create a navigator object to use in the XSL transformation 
            XPathNavigator xPathNav = xDoc.CreateNavigator(); 

            //Create the XSLTransform object 
            XslTransform xslt = new XslTransform(); 
            xslt.Load(Server.MapPath("Names.xslt")); 

            //Do the transformation and send the results out to the Response object's output stream 
            xslt.Transform(xPathNav, null, Response.OutputStream); 
        } 
    } 
}