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首先下载所需文件，jquery.autocomplete.js和jquery.autocomplete.css。
由于该控件获得数据可以从数组和URL两种方式获取，所以写了两个简单的小例子试验一下。
前台代码如下：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AutoComplete.aspx.cs" Inherits="AutoComplete" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="Scripts/jquery-1.4.1-vsdoc.js" type="text/javascript"></script>
<script src="Scripts/jquery.autocomplete.js" type="text/javascript"></script>
<link href="Styles/jquery.autocomplete.css" type="text/css" />
<script language="javascript" type="text/javascript">
//直接由数组获得
$(document).ready((function () {
var data = ["河北省", "河南省", "山东", "北京", "天津"];
$("#txtProvince").autocomplete(data);
//由SERVER端获得
$("#txtUser").autocomplete("GetUserName.aspx");
}
));
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
省份：<input id="txtProvince" type="text" />
</div>
<div>
用户名：<input id="txtUser" type="text" /></div>
</form>
</body>
</html>
其中用户名部分是从后台读取数据，相应的URL为GetUserName.aspx。该页面的.cs文件为：
protected void Page_Load(object sender, EventArgs e)
{
//默认传入的键值为q
if (Request.QueryString["q"] != null)
{
string key = Request.Params["q"].ToString();
string result = "";
db db = new db();
string sql = "select UserName from Users where UserName like ‘" + key + "%‘";
SqlDataReader dr = db.GetReader(sql);
while (dr.Read())
{
result += dr["UserName"].ToString() + "\n";
}
if (result == "")
result = "not exists";
Response.Write(result);
}
}
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原文地址：http://www.cnblogs.com/mySaveblogs/p/4521671.html
