Mega Code Archive
Set the TopIndex property of the ListBox to ensure the most recently added items are visible
<![CDATA[
using System;
using System.Windows.Forms;
public class ListBoxItemVisibleFormDemo{
[STAThread]
public static void Main(string[] args)
{
Application.Run(new ListBoxItemVisibleForm());
}
}
public partial class ListBoxItemVisibleForm : Form
{
private int counter = 0;
public ListBoxItemVisibleForm()
{
InitializeComponent();
}
private void cmdTest_Click(object sender, EventArgs e)
{
for (int i = 0; i < 200; i++)
{
counter++;
listBox1.Items.Add("Item " + counter.ToString());
}
listBox1.TopIndex = listBox1.Items.Count - 1;
listBox1.SelectedIndex = listBox1.Items.Count - 1;
}
}
partial class ListBoxItemVisibleForm
{
private System.Windows.Forms.ListBox listBox1;
private System.Windows.Forms.Button cmdTest;
private System.ComponentModel.IContainer components = null;
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
private void InitializeComponent()
{
this.listBox1 = new System.Windows.Forms.ListBox();
this.cmdTest = new System.Windows.Forms.Button();
this.SuspendLayout();
this.listBox1.FormattingEnabled = true;
this.listBox1.Location = new System.Drawing.Point(8, 8);
this.listBox1.Name = "listBox1";
this.listBox1.Size = new System.Drawing.Size(248, 160);
this.listBox1.TabIndex = 0;
this.cmdTest.Location = new System.Drawing.Point(12, 184);
this.cmdTest.Name = "cmdTest";
this.cmdTest.Size = new System.Drawing.Size(132, 28);
this.cmdTest.TabIndex = 1;
this.cmdTest.Text = "Test Scroll";
this.cmdTest.Click += new System.EventHandler(this.cmdTest_Click);
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(292, 246);
this.Controls.Add(this.cmdTest);
this.Controls.Add(this.listBox1);
this.Name = "ListBoxItemVisibleForm";
this.Text = "ListBoxItemVisibleForm";
this.ResumeLayout(false);
}
}
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