[Mono-list] events and handlers

[ville]

Hi all

I got this problem which i cant understand.

When i run compile and run following program the OnEvent method is invoked 
many times. And it surely shoudl not! I have tested this with others 
(DataRow) and it worked correctly. 

So where is the problem?

It cant be in XmlDocument?
It cant be in mcs, because DataRow works?
???
???
???

-------------
using System;
using System.Data;
using System.Xml;

public class Test {

	public static void OnEvent (object sender, XmlNodeChangedEventArgs args)
	{
		Console.WriteLine ("action " + args.Action);
	}

        public static void Main() {

            DataSet RegionDS = new DataSet ();

            XmlDocument DataDoc = new XmlDocument ();
	    DataDoc.NodeInserted -= new XmlNodeChangedEventHandler (OnEvent);
	    DataDoc.Load("region.xml" );
    }
} // End class
------------

Please, help

Ville