[Mono-list] Problem with Events

[mono-list.1.tracyanne at spamgourmet.com]

Can anyone see anything wrong with this code. It looks to me to be
correct syntax for defining and raising an event. It compiles without
error, but when I run it I get the following error message


Unhandled Exception: System.NullReferenceException: Object reference not
set to an instance of an object
in [0x00001] (at /home/tracy/MonoDevelop/TestEvents/Main.cs:22)
RaiseAnEvent:Run ()
in [0x00007] (at /home/tracy/MonoDevelop/TestEvents/Main.cs:11)
MainClass:Main (System.String[] args)

I'm using Mono_1.1.8-2.

// project created on 04/08/2005 at 17:17
using System;

class MainClass
{
				
	public static void Main(string[] args)
	{
		RaiseAnEvent RAE = new RaiseAnEvent();
		RAE.Run();
	}
}

class RaiseAnEvent
{
	public delegate void InputError(object sender, InputErrorEventArgs e);
	public event InputError OnInputError;
	
	public void Run()
	{
		OnInputError(this, new InputErrorEventArgs("DF", "OI"));
	}

}

	
//Class for passing Input Error messages to the application
class InputErrorEventArgs : EventArgs
{
	private string errorMessage;
	private string errorSource;
	
	public string ErrorMessage
	{
		get
		{
			return errorMessage;
		}
	}
	
	public string ErrorSource
	{
		get
		{
			return errorSource;
		}
	}
	
	public InputErrorEventArgs(string Message, string Source) : base()
	{
		errorMessage = Message;
		errorSource = Source;
	}
}