C#

private const string xmlns = "urn:myTree";
private const string prefix = "t";
public void WriteToXml(TreeView view)
{
  XmlTextWriter writer = new XmlTextWriter("somefile.xml", Encoding.UTF8);
  writer.WriteStartDocument();
  writer.WriteStartElement(prefix, "treeView", xmlns);
  foreach (TreeNode node in view.Nodes)
    this.WriteToXmlHelper(node, writer);
  writer.WriteEndElement();
  writer.WriteEndDocument();
}
private void WriteToXmlHelper(TreeNode node, XmlTextWriter writer)
{
  writer.WriteStartElement(prefix, "treeNode", xmlns);
  writer.WriteStartAttribute(prefix, "text", xmlns);
  writer.WriteString(node.Text);
  writer.WriteEndAttribute();
  foreach (TreeNode node in node.Nodes)
    this.WriteToXmlHelper(node, writer);
  writer.WriteEndElement();
}

using System;
using System.Windows.Forms;

namespace Test
{
	class Class1 : System.Windows.Forms.Form
	{
		public Class1(){}

		public delegate void MyEventHandler(int i);
		public event MyEventHandler MyEvent;

		static void Main(string[] args)
		{
			Class1 cls = new Class1();
			cls.MyEvent += new MyEventHandler(SomeMethod);
			cls.MyEvent += new MyEventHandler(AnotherMethod);

			if(cls.MyEvent != null)
				cls.MyEvent(6);

			cls.ShowDialog();
		}

		public static void SomeMethod(int i)
		{
			MessageBox.Show("Hello from SomeMethod. " +
				            i + " was passed in.");
		}

		public static void AnotherMethod(int i)
		{
			MessageBox.Show("Hello from AnotherMethod. " +
				i + " was passed in.");
		}
	}
}

-Nick Parker
DeveloperNotes.com

string system = Environment.GetFolderPath(Environment.SpecialFolder.System);
string windir = Directory.GetParent(system).FullName;
string framework = Path.Combine(windir, "Microsoft.NET\\Framework");