Add action handler to button : Button : GUI Windows Forms C# Examples

    
using  System;
using  System.Drawing;
using  System.Collections;
using  System.ComponentModel;
using  System.Windows.Forms;
using  System.Data;

public  class  ButtonActionForm  :  System.Windows.Forms.Form
{
    private  System.Windows.Forms.Button  button1;
    private  System.ComponentModel.Container  components  =  null;

    public  ButtonActionForm()
    {
        InitializeComponent();

    }

    protected  override  void  Dispose(  bool  disposing  )
    {
        if(  disposing  )
        {
            if  (components  !=  null)  
            {
                components.Dispose();
            }
        }
        base.Dispose(  disposing  );
    }

    private  void  InitializeComponent()
    {
        this.button1  =  new  System.Windows.Forms.Button();
        this.SuspendLayout();

        this.button1.Location  =  new  System.Drawing.Point(109,  122);
        this.button1.Name  =  "button1";
        this.button1.TabIndex  =  0;
        this.button1.Text  =  "Say  Hello";
        this.button1.Click  +=  new  System.EventHandler(this.button1_Click);

        this.AutoScaleBaseSize  =  new  System.Drawing.Size(5,  13);
        this.ClientSize  =  new  System.Drawing.Size(292,  266);
        this.Controls.AddRange(new  System.Windows.Forms.Control[]  {
                                                                        this.button1});
        this.Name  =  "ButtonActionForm";
        this.ResumeLayout(false);

    }

    [STAThread]
    static  void  Main()  
    {
        Application.Run(new  ButtonActionForm());
    }

    private  void  button1_Click(object  sender,  System.EventArgs  e)
    {
        MessageBox.Show(  this,  "Hello"  );
    }
}