using System;
using System.Drawing;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
public class ListBoxItemAdd : Form{
ListBox lb;
public ListBoxItemAdd()
{
Size = new Size(300,400);
lb = new ListBox();
lb.Parent = this;
lb.Location = new Point(10,10);
lb.Size = new Size(ClientSize.Width - 20, Height - 200);
lb.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right | AnchorStyles.Bottom;
lb.BorderStyle = BorderStyle.Fixed3D;
lb.BeginUpdate();
for (int i = 0; i < 5; i++)
{
lb.Items.Add(i);
}
lb.Items.Add("12345");
lb.Items.Add("67890");
lb.EndUpdate();
}
static void Main()
{
Application.Run(new ListBoxItemAdd());
}
}