<root>
  <course="Math">
    <book>
      <author>
        amélie nothomb
      </author>
      <title>
        métaphysique des tubes
      </title>
      <isbn>
      </isbn>
      <price>
        10.45
      </price>
    </book>
    <evaluation>
      <title>
        recherche
      </title>
      <note>
        70.3
      </note>
      <max>
        100.0
      </max>
      <group>
        65.4
      </group>
      <weight>
        20
      </weight>
    </evaluation>
  </course>
</root>

using System;
using System.IO;
using System.Xml;

class MyApp
{
	public static void Main()
	{
		FileStream fs = new FileStream("test.xml", FileMode.Open);
		XmlReader xml_reader = new XmlTextReader(fs);
		while(!xml_reader.EOF) Console.WriteLine(xml_reader.ReadString());
		Console.Read();
	}
}

[Serializable]
class Test
{
	public string _name;
	public int _number;
	public double _price;

	public void Print()
	{
		Console.WriteLine("Name: {0}", _name);
		Console.WriteLine("Number: {0}", _number);
		Console.WriteLine("Price: {0}", _price);
	}
}

class Program
{
static void Main(string[] args)
{
	Test test = new Test();
	test._name = "My name";
	test._number = 42;
	test._price = 3.141592;

	Console.WriteLine("Before serialization the object contains: ");
	test.Print();

	//SoapFormatter formatter;
	BinaryFormatter formatter;

	//Opens a file and serializes the object into it in binary format.
	using (Stream stream = File.Open("data.bin", FileMode.Create))
	{
		//formatter = new SoapFormatter();
		formatter = new BinaryFormatter();

		formatter.Serialize(stream, test);
	}

	//Empties obj.
	test = null;

	//Opens file "data.xml" and deserializes the object from it.
	using (Stream stream = File.Open("data.bin", FileMode.Open))
	{
		//formatter = new SoapFormatter();
		formatter = new BinaryFormatter();

		test = (Test)formatter.Deserialize(stream);
	}

	Console.WriteLine();
	Console.WriteLine("After deserialization the object contains: ");
	test.Print();

	Console.WriteLine("Finished");
	Console.ReadLine();
}
}

using (FileStream fs = new FileStream("test.xml", FileMode.Open))
{
	using (XmlReader xml_reader = new XmlTextReader(fs))
	{
		while (!xml_reader.EOF)
			Console.WriteLine(xml_reader.ReadString());
	}

}
Console.Read();

/*
 * Created by SharpDevelop.
 * User: Alexandre
 * Date: 2006-08-15
 * Time: 15:17
 * 
 * To change this template use Tools | Options | Coding | Edit Standard Headers.
 */

using System;
using System.Collections.Generic;

namespace StudentData
{
	class Book
	{
		public String Title, ISBN, Author;
		public float Price;
	}
	
	class Evaluation
	{	
		public String Name;
		public float Note, MaxScore, GroupAvg, Weight;
	}

	class Course
	{
		public void AddBook(Book b)
		{
			BookList.Add(b);
		}
		
		public void AddBook(String t, String a, String i, float p)
		{
			BookList.Add(new Book(t, a, i, p));
		}
		
		public void AddEvaluation(Evaluation ev)
		{
			EvaluationList.Add(ev);
		}
		
		public void AddEvaluation(String na, float no, float m, float g, float w)
		{
			EvaluationList.Add(new Evaluation(na, no, m, g, w));
		}

		private String Name, Id;
		private List<Evaluation> EvaluationList;
		private List<Book> BookList;
	}
	
	class StudentManager
	{
		public void GetDataFromFile(String file_name)
		{
			// This is where I want to read the file

		}
		
		private List<Course> CourseList;
	}
}