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<?xml version="1.0" encoding="utf-8"?>
<ProductList>
  <Title>Title </Title>
  <!--

-->
  <SectionNode>
    <SectionTitle>nNodeID.ToString() </SectionTitle>
    <Description>Description </Description>
    <SingleSelect>false </SingleSelect>
    <ProductItem>
      <!--ÕæÐÄÏã¹Ï×Ó75¿Ë-->
      <PePID>9816 </PePID>
      <DefaultSelection>false </DefaultSelection>
      <DefaultNumber>1 </DefaultNumber>
      <Discount>1 </Discount>
      <Visible>true </Visible>
    </ProductItem>
  </SectionNode>
</ProductList>

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if ((ds.Tables.Count == 1) && (ds.Tables[0].Rows.Count != 0))
{
    XmlDocument rDoc = new XmlDocument();
    rDoc.Load(MapPath("TestXml.xml"));

    XmlElement root = rDoc.DocumentElement;

    XmlNode rXmlTitle = rDoc