DataSet dataset = new DataSet();
dataset.ReadXml(this.XmlUrl);

            XmlTextReader rssReader = new XmlTextReader(this.XmlUrl);
            XslCompiledTransform rssTransform = new XslCompiledTransform();
            string xslt = @"<?xml version=""1.0"" encoding=""UTF-8"" ?>
<xsl:transform version=""1.0"" xmlns:xsl=""http://www.w3.org/1999/XSL/Transform"">
  <xsl:output method=""xml"" omit-xml-declaration=""no""/>
  <xsl:template match=""/"">
    <xsl:for-each select=""rss"">
    <rss version=""2.0"">
      <xsl:for-each select=""channel"">
        <channel>
            <title><![CDATA[<xsl:value-of select=""title""/>]]></title>
            <link><xsl:value-of select=""link""/></link>
            <description><![CDATA[<xsl:value-of select=""description""/>]]></description>
        <xsl:for-each select=""item"">
          <item>
            <title><![CDATA[<xsl:value-of select=""title""/>]]></title>
            <link><xsl:value-of select=""link""/></link>
            <description><![CDATA[<xsl:value-of select=""description""/>]]></description>
            <guid><xsl:value-of select=""guid""/></guid>
          </item>       
        </xsl:for-each>
        </channel>
      </xsl:for-each>
    </rss>
    </xsl:for-each>
  </xsl:template>
</xsl:transform>
            ";
            rssTransform.Load(new XmlTextReader(new StringReader(xslt)));
            
            StringWriter rssStringWriter = new StringWriter();
            XmlTextWriter rssWriter = new XmlTextWriter(rssStringWriter);
            XPathDocument rssXPath = new System.Xml.XPath.XPathDocument(rssReader);
            rssTransform.Transform(rssXPath, rssWriter);
            rssReader.Close();
            rssWriter.Close();

            System.IO.StringReader dataSetReader = new System.IO.StringReader(rssStringWriter.ToString());
            DataSet dataset = new DataSet();

            dataset.ReadXml(dataSetReader);