using System;using System.Configuration;using System.Xml;using System.Xml.Serialization;using System.Xml.XPath;namespace Utility.URLRewriter{    /// <summary>    /// Deserializes the markup in Web.config into an instance of the <see cref="RewriterConfiguration"/> class.    /// </summary>    public class RewriterConfigSerializerSectionHandler : IConfigurationSectionHandler     {        /// <summary>        /// Creates an instance of the <see cref="RewriterConfiguration"/> class.        /// </summary>        /// <remarks>Uses XML Serialization to deserialize the XML in the Web.config file into an        /// <see cref="RewriterConfiguration"/> instance.</remarks>        /// <returns>An instance of the <see cref="RewriterConfiguration"/> class.</returns>        public object Create(object parent, object configContext, System.Xml.XmlNode section)         {            string sourcePath = section.Attributes["ConfigSource"].Value;            // Create an instance of XmlSerializer based on the RewriterConfiguration type...            XmlSerializer ser = new XmlSerializer(typeof(RewriterConfiguration));            XmlDocument xmlDoc = new XmlDocument();            xmlDoc.Load(System.Web.HttpContext.Current.Server.MapPath(sourcePath));            // Return the Deserialized object from the Web.config XML            return ser.Deserialize(new XmlNodeReader(xmlDoc));            //// Create an instance of XmlSerializer based on the RewriterConfiguration type...            //XmlSerializer ser = new XmlSerializer(typeof(RewriterConfiguration));            //// Return the Deserialized object from the Web.config XML            //return ser.Deserialize(new XmlNodeReader(section));        }    }}

<configSections>    <section name="RewriterConfig" type="URLRewriter.Config.CustomRewriterConfigSerializerSectionHandler, URLRewriter" /></configSections><RewriterConfig ConfigSource="/config/URLRewriter.config"></RewriterConfig>

<?xml version="1.0"?>  <RewriterConfig>    <Rules>      <!-- Rules for Blog Content Displayer -->      <RewriterRule>        <LookFor>~/1.aspx</LookFor>        <SendTo>~/Default.aspx</SendTo>      </RewriterRule>      <RewriterRule>        <LookFor>~/(\d{4})/(\d{2})/(\d{2})\.aspx</LookFor>        <SendTo>~/ShowBlogContent.aspx?year=$1&month=$2&day=$3</SendTo>      </RewriterRule>    </Rules>  </RewriterConfig>