C# Event Pattern

eventpattern.cs

namespace eventpattern {
	public delegate void AllPropertiesDetailsParsedEventHandler(object sender, AllPropertiesDetailsParsedEventArgs e);
	public class AllPropertiesDetailsParsedEventArgs : EventArgs
		{

		}
		
	public partial class Controller
	{
		public event AllPropertiesDetailsParsedEventHandler AllPropertiesDetailsParsed;
		protected internal virtual void OnAllPropertiesDetailsParsed(AllPropertiesDetailsParsedEventArgs e)
		{
			AllPropertiesDetailsParsed(this, e);
		}
	}
	
	public partial class MainForm : Form
	{
		private Controller controller = null;
		public MainForm()
		{
			InitializeComponent();
			controller = new Controller();
			this.controller.AllPropertiesDetailsParsed += new AllPropertiesDetailsParsedEventHandler(this.AllPropertiesDetailsParsed);
		}
		private void AllPropertiesDetailsParsed(object sender, AllPropertiesDetailsParsedEventArgs e)
		{
			// Take action here (custom code)		
		}		
	}
}