XslTransform和XslArgumentList

XslTransform建立在一个流拉模型（streaming pull mode）上。因此可以把几个转换连接在一起。

private void button1_Click(object sender, System.EventArgs e)
  {
   XPathDocument doc =new XPathDocument("booksxpath.xml");
   XslTransform transForm = new XslTransform();
   transForm.Load("books.xsl");
   //下面的文件流将会被输出
   FileStream fs = new FileStream("booklist.html",FileMode.Create);
   //创建一个浏览器
   XPathNavigator nav = ((IXPathNavigable)doc).CreateNavigator();
   //用transForm输出文件
   transForm.Transform(nav,null,fs);
  }

XslArgumentList，这是把对象和方法绑定到名称空间上的一种方式，绑定好后，就可以在转换中调用该方法。

  private void button1_Click(object sender, System.EventArgs e)
  {
   XPathDocument doc = new XPathDocument("booksxpath.xml");
   XslTransform transform = new XslTransform();
   transform.Load("booksarg.xsl");
   XmlWriter xw = new XmlTextWriter("argSample.xml",null);

   XsltArgumentList argBook = new XsltArgumentList();
   BookUtils bu = new BookUtils();

   argBook.AddExtensionObject("urn:ProCSharp",bu);
   XPathNavigator nav = ((IXPathNavigable)doc).CreateNavigator();
   transform.Transform(nav,argBook,xw);
   xw.Close();
   
  }

  //简单的测试类
  public class BookUtils
  {
   public BookUtils()
   {
   }
   public string ShowText()
   {
    return "This came from the ShowText method!";
   }
  }