//引入命名空间
using System;
using System.Data;
using System.Xml;
public class Sample {
    public static void Main() {
        // Create an XmlDataDocument.
        XmlDataDocument doc = new XmlDataDocument();
        
        // Load the schema file.
        doc.DataSet.ReadXmlSchema("store.xsd");
        
        // Load the XML data.
        XmlTextReader reader = new XmlTextReader("2books.xml");
        reader.MoveToContent(); // Moves the reader to the root node.
        doc.Load(reader);
        
        // Update the price on the first book using the DataSet methods.
        DataTable books = doc.DataSet.Tables["book"];
        books.Rows[0]["price"] = "12.95";
        
        Console.WriteLine("Display the modified XML data...");
        doc.Save(Console.Out);
    }
} // End class

//引入命名空间
using System;
using System.IO;
using System.Xml;

public class MainClass
{
  public static void Main()
  {
    try
    {
      XmlDataDocument myXmlDocument = new XmlDataDocument();

      myXmlDocument.Load("Sample.xml");

      myXmlDocument.Save(Console.Out);
    }
    catch (Exception e)
    {
      Console.WriteLine("Exception: {0}", e.ToString());
    }
  }
}