C# 4 and .NET 4

Using XPathnavigators ❘ 923
Using XsltArgumentList
XsltArgumentList is a way that you can bind an object with methods to a namespace. Once this is done,
you can invoke the methods during the transform. Here is an example:
private void button3_Click(object sender, EventArgs e)
{
//new XPathDocument
XPathDocument doc = new XPathDocument("books.xml");
//new XslTransform
XslCompiledTransform trans = new XslCompiledTransform();
trans.Load("booksarg.xsl");
//new XmlTextWriter since we are creating a new xml document
XmlWriter xw = new XmlTextWriter("argSample.xml", null);
//create the XslArgumentList and new BookUtils object
XsltArgumentList argBook = new XsltArgumentList();
BookUtils bu = new BookUtils();
//this tells the argumentlist about BookUtils
argBook.AddExtensionObject("urn:XslSample", bu);
//new XPathNavigator
XPathNavigator nav = doc.CreateNavigator();
//do the transform
trans.Transform(nav, argBook, xw);
xw.Close();
webBrowser1.Navigate(AppDomain.CurrentDomain.BaseDirectory + "argSample.xml");
}
code download XslSample01.sln
The following is the code for the BooksUtil class. This is the class that will be called from the transform:
class BookUtils
{
public BookUtils() { }
public string ShowText()
{
return "This came from the ShowText method!";
}
}
code snippet BookUtils.cs
www.it-ebooks.info