I have a trouble with finding a suitable method to override OnStart, OnStop, OnPowerEvent in the following code

using System;
 
public class MyMainServiceClass 
{
 
    private System.ComponentModel.Container components = null;
 
    private MyMainServiceClass m_mainApp; 
 

    public MyMainServiceClass ()
    {
 
        InitializeComponent ();
 

        CanHandlePowerEvent = true;
 

        m_mainApp = new MyMainServerAppClass ();
    } 
 
    static void Main ()
    {
        System.ServiceProcess.ServiceBase[] ServicesToRun;
 
        ServicesToRun = new System.ServiceProcess.ServiceBase[]
        {
            new MyMainServiceClass()
        };
 
        System.ServiceProcess.ServiceBase.Run (ServicesToRun);
    } 
 
    protected override void Dispose (bool disposing)
    {
        if (disposing)
        {
            if (components != null)
            {
                components.Dispose ();
            }
        }
        base.Dispose (disposing);
    } 
 
    protected override void OnStart (string[] args)
    {
 
        m_mainApp.Start ();
    }
 
    protected override void OnStop ()
    {
        m_mainApp.Stop ();
    }
 
    protected override bool OnPowerEvent (PowerBroadcastStatus powerStatus)
    {
        switch (powerStatus)
        {
        case PowerBroadcastStatus.QuerySuspend:
 
            return (true);
        case PowerBroadcastStatus.Suspend:
 
            m_mainApp.Stop ();
            break;
        case PowerBroadcastStatus.ResumeAutomatic:
        case PowerBroadcastStatus.ResumeCritical:
        case PowerBroadcastStatus.ResumeSuspend:
 
            m_mainApp.Start ();
            break;
        default:
            break;
        } 
        base.OnPowerEvent (powerStatus);
 
        return (true);
    } 
    private void InitializeComponent ()
    {
        components = new System.ComponentModel.Container ();
        this.ServiceName = "MyVS.NetService";
    }
 
}