xn 代表一個(gè)結(jié)點(diǎn)
xn.Name;//這個(gè)結(jié)點(diǎn)的名稱
xn.Value;//這個(gè)結(jié)點(diǎn)的值
xn.ChildNodes;//這個(gè)結(jié)點(diǎn)的所有子結(jié)點(diǎn)
xn.ParentNode;//這個(gè)結(jié)點(diǎn)的父結(jié)點(diǎn)

#region XmlDocument讀取

public static void XmlDocumentReadDemo()
{
  //list
  List<BookModel> bookModeList = new List<BookModel>();

  //使用的時(shí)候,首先聲明一個(gè)XmlDocument對(duì)象,然后調(diào)用Load方法,從指定的路徑加載XML文件.
  XmlDocument doc = new XmlDocument();

  XmlReaderSettings settings = new XmlReaderSettings();
  settings.IgnoreComments = true;//忽略文檔里面的注釋
  using (XmlReader reader = XmlReader.Create(@"d:/demo.xml", settings))
  {
    doc.Load(reader);
    //doc.Load(@"d:/demo.xml");
    //然后可以通過調(diào)用SelectSingleNode得到指定的結(jié)點(diǎn),通過GetAttribute得到具體的屬性值.參看下面的代碼
    // 得到根節(jié)點(diǎn)bookstore
    XmlNode xn = doc.SelectSingleNode("bookstore");
    // 得到根節(jié)點(diǎn)的所有子節(jié)點(diǎn)
    XmlNodeList xnl = xn.ChildNodes;

    foreach (XmlNode xn1 in xnl)
    {
      BookModel bookModel = new BookModel();
      // 將節(jié)點(diǎn)轉(zhuǎn)換為元素，便于得到節(jié)點(diǎn)的屬性值
      XmlElement xe = (XmlElement)xn1;
      // 得到Type和ISBN兩個(gè)屬性的屬性值
      bookModel.BookISBN = xe.GetAttribute("ISBN").ToString();
      bookModel.BookType = xe.GetAttribute("Type").ToString();
      // 得到Book節(jié)點(diǎn)的所有子節(jié)點(diǎn)
      XmlNodeList xnl0 = xe.ChildNodes;
      bookModel.BookName = xnl0.Item(0).InnerText;
      bookModel.BookAuthor = xnl0.Item(1).InnerText;
      bookModel.BookPrice = Convert.ToDouble(xnl0.Item(2).InnerText);

      bookModeList.Add(bookModel);
    }
  }
  bookModeList.Add(new BookModel());
}

#endregion XmlDocument讀取

#region XmlTextReaderDemo

public static void XmlTextReaderDemo()
{
  XmlTextReader reader = new XmlTextReader(@"d:/demo.xml");
  List<BookModel> modelList = new List<BookModel>();
  BookModel model = new BookModel();
  while (reader.Read())
  {
    if (reader.NodeType == XmlNodeType.Element)
    {
      if (reader.Name == "book")
      {
        model.BookType = reader.GetAttribute("Type");
        model.BookISBN = reader.GetAttribute("ISBN");
      }
      if (reader.Name == "title")
      {
        model.BookName = reader.ReadElementContentAsString();
      }
      if (reader.Name == "author")
      {
        model.BookAuthor = reader.ReadElementString().Trim();
      }
      if (reader.Name == "price")
      {
        model.BookPrice = Convert.ToDouble(reader.ReadElementString().Trim());
      }
      //for(int i=0;i<reader.AttributeCount;i++)
      //{
      //  reader.MoveToAttribute(i);
      //}
    }

    if (reader.NodeType == XmlNodeType.EndElement)
    {
      modelList.Add(model);
      model = new BookModel();
    }
  }
  reader.Close();
  modelList.Add(new BookModel());
}

#endregion XmlTextReaderDemo

#region 讀取所有的數(shù)據(jù)

XElement xe = XElement.Load(@"d:/demoLinq.xml");
//xe.Descendants
var elements = from ele in xe.Elements()
        select ele;
List<BookModel> modelList = new List<BookModel>();
foreach (var ele in elements)
{
  BookModel model = new BookModel();
  model.BookAuthor = ele.Element("author").Value;
  model.BookName = ele.Element("title").Value;
  model.BookPrice = Convert.ToDouble(ele.Element("price").Value);
  model.BookISBN = ele.Attribute("ISBN").Value;
  model.BookType = ele.Attribute("Type").Value;

  modelList.Add(model);
}
modelList.Add(new BookModel());

#endregion 讀取所有的數(shù)據(jù)