[Mono-list] Visibility of the objects

[Panoramix]

I am doing the first steps with Mono and C #, and I stalled on a stupid
problem.
I implemented a timer that launches an event every X seconds.
Now when the procedure is called I want to change a label but I can not
because I receive this message
"` MainWindow.label2 ': An object reference is required for the nonstatic
field "

How can I fix?

// MainWindow.cs created with MonoDevelop
// User: franaria at 11:21 15/05/2008
//
// To change standard headers go to Edit->Preferences->Coding->Standard
Headers
//
using System;
using System.Diagnostics;

using System.IO.Ports;

using System.Net;

using System.Net.Sockets;

using System.Threading;
using System.Timers;     //per la gestione dei timer
using Gtk;
using Modbus.Device;

public partial class MainWindow: Gtk.Window
{	
	private static System.Timers.Timer ourTimer;
	
	public MainWindow (): base (Gtk.WindowType.Toplevel)
	{
		Build ();
		ourTimer = new System.Timers.Timer();

		// attach to the Elapsed event.
		ourTimer.Elapsed += new ElapsedEventHandler(OnTimerElapsed);
		
		// make our timer interval 1 second
		ourTimer.Interval = 1000;
    	//Build ();		
	}
	
	protected void OnDeleteEvent (object sender, DeleteEventArgs a)
	{
		Application.Quit ();
		a.RetVal = true;
	}

	protected virtual void Butt1Start (object sender, System.EventArgs e)
	{
	}

	protected virtual void OnButton2Clicked (object sender, System.EventArgs e)
	{
		if (ourTimer.Enabled == false)
		{
			ourTimer.Enabled = true ;
			button2.Label = "Starting read";
			}else 
		{	
			ourTimer.Enabled = false ;
			button2.Label = "Start Timed read";
			}
	}
	
	 private static void OnTimerElapsed(object sender, ElapsedEventArgs e)
     {
		Console.WriteLine("Timer elapsed at: " + e.SignalTime.ToLongTimeString());
		//label2.Text = "Timer elapsed at: " + e.SignalTime.ToLongTimeString();    
<---  Problem
		//button2.Label = "Running Timed Read";                                                 
<---
     }

}

Thanks to all :blush:

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