Here is the complete code
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace ListBoxTest
{
/// /// Summary description for Form1.
///
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.ListBox listBox1;
private System.Windows.Forms.Button button1;
/// /// Required designer variable.
///
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// /// Clean up any resources being used.
///
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// /// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
this.listBox1 = new System.Windows.Forms.ListBox();
this.button1 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// listBox1
//
this.listBox1.Items.AddRange(new object\[\] {
"1",
"2",
"3",
"4",
"5",
"6",
"7"});
this.listBox1.Location = new System.Drawing.Point(144, 24);
this.listBox1.Name = "listBox1";
this.listBox1.SelectionMode = System.Windows.Forms.SelectionMode.MultiExtended;
this.listBox1.Size = new System.Drawing.Size(352, 225);
this.listBox1.TabIndex = 0;
this.listBox1.SelectedIndexChanged += new System.EventHandler(this.listBox1\_SelectedIndexChanged);
//
// button1
//
this.button1.Location = new System.Drawing.Point(144, 272);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(352, 24);
this.button1.TabIndex = 1;
this.button1.Text = "button1";
this.button1.Click += new System.EventHandler(this.button1\_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(632, 446);
this.Controls.Add(this.button1);
this.Co
