如何使用 XmlReader 读取 xml 文档？

Question

I have a xml:

<doc>
****
<book>
    <author>Pete</author>
    <rating>4</rating>
    <pages>243</pages>
</book>
<shop>
    <></>
    <></>
</shop>
</doc>

I tried to read it with XmlReader:

using (XmlReader reader = XmlReader.Create(stream))
{
    reader.MoveToContent();
    //read some elements
    reader.ReadToFollowing("book");

}

But when i meet element book i dont know how to move inside, i mean how to read author , rating etc? And how to move to upper level again to read shop element.
I tried ReadToDescendant() but dont think that its what i needed.
Any advises?

Examples from comments dont helped me. I forget that i have a namespaces in document:

<doc>
  ****
  <book>
      <ns8:author>Pete</ns8:author>
      <ns8:rating>4</ns8:rating>
      <ns8:pages>243</ns8:pages>
  </book>
  <shop>
      <></>
      <></>
  </shop>
</doc>

So i use NamespaceManager:

  var nsmgr = new XmlNamespaceManager(reader.NameTable);
  nsmgr.AddNamespace("ns8", "namespace uri1");
  nsmgr.AddNamespace("ns6", "namespace uri2");

And read document:

using (XmlReader reader = XmlReader.Create(stream))
{
   while (reader.Read())
   {
       if (reader.NodeType == XmlNodeType.Element)
       {
           reader.ReadToFollowing("book");
           reader.ReadToFollowing("ns8:author");
       }
}

But anyway line reader.ReadToFollowing("ns8:author"); do not return author node.

Answer 1

Specify the right namespace in the ReadToFollowing method.

using (XmlReader reader = XmlReader.Create(stream))
{
    reader.ReadToFollowing("book");

    reader.ReadToFollowing("author", "uri1");
    var author = reader.ReadElementContentAsString();
    Console.WriteLine(author);

    reader.ReadToFollowing("rating", "uri1");
    var rating = reader.ReadElementContentAsInt();
    Console.WriteLine(rating);

    // and so on
}