C# 仿百度自动匹配

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

namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void comboBox1_TextChanged(object sender, EventArgs e)
{

}

private void Form1_Load(object sender, EventArgs e)
{
// Create the list to use as the custom source.
AutoCompleteStringCollection source = new AutoCompleteStringCollection();
source.AddRange(new string[]
{
"January",
"February",
"March",
"April",
"May",
"June",
"July",
"August",
"September",
"October",
"November",
"December"
});

// Create and initialize the text box.
TextBox textBox = new TextBox();

textBox.AutoCompleteCustomSource = source;
textBox.AutoCompleteMode =
AutoCompleteMode.SuggestAppend;
textBox.AutoCompleteSource =
AutoCompleteSource.CustomSource;
textBox.Location = new Point(20, 20);
textBox.Width = ClientRectangle.Width - 40;
textBox.Visible = true;

// Add the text box to the form.
Controls.Add(textBox);
//comboBox1.DropDownHeight = 300;
}
}