1，search.aspx（显示页面）
<!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><title>输入框信息提示（数据库）</title><script language="javascript" type="text/javascript">//创建XMLHttpRequest对象 function createXMLHttpRequest() { var obj; if(window.XMLHttpRequest) { //Mozilla 浏览器 obj = new XMLHttpRequest(); } else if (window.ActiveXObject) { // IE浏览器 try { obj = new ActiveXObject( "Msxml2.XMLHTTP"); } catch(e){ try{ obj = new ActiveXObject( "Microsoft.XMLHTTP"); } catch (e) {} } } return obj; } //当输入框的内容变化时，调用该函数function searchSuggest() { var inputField = document.getElementById( "txtSearch");var suggestText = document.getElementById( "search_suggest");if (inputField.value.length > 0) {
var o=createXMLHttpRequest();var url = "Server.aspx?searchText=" + escape(inputField.value);
o.open("GET", url, true); o.onreadystatechange = function(){ if(o.readyState == 4){ if(o.status == 200){ var sourceText = o.responseText.split( "\n");if(sourceText.length >1){ suggestText.style.display= "";suggestText.innerHTML = "";for(var i=0;i <sourceText.length-1;i++) { var s=' <div οnmοuseοver="javascript:suggestOver(this);"';s+=' οnmοuseοut= "javascript:suggestOut(this);" ';s+=' οnclick= "javascript:setSearch(this.innerHTML);" ';s+=' class= "suggest_link">' +sourceText[i]+'</div>';suggestText.innerHTML += s; } } else{ suggestText.style.display= "none";} } } };//指定响应函数 o.send(null); // 发送请求 } else { suggestText.style.display= "none";} }function suggestOver(div_value){
div_value.className = "suggest_link_over";}function suggestOut(div_value){
div_value.className = "suggest_link";}function setSearch(obj){
document.getElementById("txtSearch").value = obj;var div = document.getElementById( "search_suggest");div.innerHTML = "";div.style.display= "none"; }function tbblur(){
var div = document.getElementById("search_suggest");//div.innerHTML = "";div.style.display= "none"; }</script><style type="text/css" media="screen">
body{ font: 11px arial; } .suggest_link { background-color: #FFFFFF; padding: 2px 6px 2px 6px; } .suggest_link_over { background-color: #E8F2FE; padding: 2px 6px 2px 6px; } #search_suggest { position: absolute; background-color: #FFFFFF; text-align: left; border: 1px solid #000000; } /*input*/ .input_on{ padding:2px 8px 0pt 3px; height:18px; border:1px solid #999; background-color:#FFFFCC; } .input_off{ padding:2px 8px 0pt 3px; height:18px; border:1px solid #CCC; background-color:#FFF; } .input_move{ padding:2px 8px 0pt 3px; height:18px; border:1px solid #999; background-color:#FFFFCC; } .input_out{ /*height:16px;默认高度*/ padding:2px 8px 0pt 3px; height:18px; border:1px solid #CCC; background-color:#FFF; } </style></head><body><form id="form1" action=""><input type="text" id="txtSearch" name="txtSearch" οnkeyup="searchSuggest();" size="20" class="input_out" οnfοcus="this.className='input_on';this.οnmοuseοut=''" οnblur="this.className='input_off';this.οnmοuseοut=function(){this.className='input_out'};" οnmοusemοve="this.className='input_move'" οnmοuseοut="this.className='input_out'" /><br /><div id="search_suggest" ></div></form></body></html>2.1，Server.aspx（数据提供页，此页面中删除其它多余代码，只留最上面一行。如果这里改了名请记得显示页面的调用处也要改哈-_-）
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Server.aspx.cs" Inherits="Server" %>
2.2，Server.aspx.cs（数据提供页CS代码）
using System;
using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using MySql.Data.MySqlClient;public partial class Server : System.Web.UI.Page
{ protected void Page_Load(object sender, EventArgs e) { if (Request.QueryString[ "searchText"] != null){ if (Request.QueryString[ "searchText"].ToString().Trim().Length > 0){ DataTable dt = new DataTable(); using (MySqlConnection conn = new MySqlConnection("Server=10.174.14.160;Initial Catalog=parts;User Id=root;pwd=789789;Allow Zero Datetime=True")){ MySqlCommand cmd = new MySqlCommand();cmd.Connection = conn;cmd.CommandText = string.Format( "Select distinct GNFL From summary Where GNFL like '%{0}%'",Request.QueryString["searchText"]);MySqlDataAdapter adapter = new MySqlDataAdapter(cmd);conn.Open();adapter.Fill(dt);}string returnText = "";
if (dt != null && dt.Rows.Count > 0){ for (int i = 0; i < dt.Rows.Count; i++){ returnText += dt.Rows[i][0].ToString() + "\n";} }Response.Write(returnText);
}} } }