Winforms button event

CSharp kode 

 public sealed class MinKlasse
     {
         static readonly MinKlasse instance = new MinKlasse();
 
         public static MinKlasse Instance
         {
             get
             {
                 return instance;
             }
         }
 
         private MinKlasse()
         {
         }
     }

CSharp kode 

 namespace WindowsFormsApplication2
 {
     public partial class Form1 : Form
     {
         private MyWorker worker = null;
         public Form1()
         {
             InitializeComponent();
             worker = new MyWorker();
         }
 
         private void button1_Click(object sender, EventArgs e)
         {
             worker.Start();
             worker.Stop();
         }
     }
 
     public class MyWorker
     {
         public void Start() { }
         public void Stop() { }
     }
 }