jquery autocomplete自动完成插件的的使用方法_jquery

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AutoComplete.aspx.cs" Inherits="AutoComplete" %>

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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);
}
}