UTILISATION DES "LISTENERS"

using System;
using System.IO;
using System.Diagnostics;

class MyClass {
	private EventLog objWindowsLog;
	private String sCurLogSource;
	
	public MyClass() {
		// Constructeur par défaut
		
		sCurLogSource="ThisComponent";
		
        // Create the source, if it does not already exist.
        if(!EventLog.SourceExists(sCurLogSource)){
            EventLog.CreateEventSource(sCurLogSource, "Mes progs à moi");
        }
                
        // Create an EventLog instance and assign its source.
        objWindowsLog = new EventLog();
        objWindowsLog.Source = sCurLogSource;
        
        // Write an informational entry to the event log.    
        objWindowsLog.WriteEntry("Log object initialized");
		
	}
	
	public MyClass(String sComponentName) {
		sCurLogSource=sComponentName;
		
        // Create the source, if it does not already exist.
        if(!EventLog.SourceExists(sCurLogSource)){
            EventLog.CreateEventSource(sCurLogSource, "Mes progs à moi");
        }
                
        // Create an EventLog instance and assign its source.
        objWindowsLog = new EventLog();
        objWindowsLog.Source = sCurLogSource;
        
        // Write an informational entry to the event log.    
        objWindowsLog.WriteEntry("Log object initialized");
		
	}

	public void RemoveDebugListeners() {
		// remove all listeners to the Debug object...
		for (int i=0; i<Debug.Listeners.Count; i++){
			Debug.Listeners.RemoveAt(i);
		}
	}

	public void AddDebugLogListener() {
		// Create a trace listener for the event log.
    	EventLogTraceListener LogListener = new EventLogTraceListener(sCurLogSource);
					
		// Add the event log trace listener to the collection.
		Debug.Listeners.Add(LogListener);
		Debug.WriteLine("Listener Added");
	}
	
	public void AddDebugFileListener(String sFileName){
		// Create a file listener.
		Stream s = File.Create(sFileName);
		TextWriterTraceListener FileListener = new TextWriterTraceListener(s);

		// Add the file listener to the collection.
		Debug.Listeners.Add(FileListener);
	}
}