JS实现仿google、百度搜索框输入信息智能提示的实现方法

<%@ WebHandler Language="C#" Class="SearchResult" %>
using System;
using System.Web;
using System.Data;
public class SearchResult : IHttpHandler {
 public void ProcessRequest (HttpContext context) {
  object QueryWord=context.Request.QueryString["searchText"];
  if (QueryWord != null)
  {
   if (QueryWord.ToString().Trim().Length > 0)
   {
    DataTable dt = getDB();
    string returnText = "";
    if (dt != null && dt.Rows.Count > 0)
    {
     DataRow[] dr = dt.Select(" name like '%" + QueryWord .ToString()+ "%' ");
     if (dr.Length > 0)
     {
      for (int i = 0; i < dr.Length; i++)
      {
       //可设置返回多字符串
       returnText += dr[i]["id"].ToString() + "@" + dr[i]["name"].ToString() + "\n";
      }
     }
    }
    context.Response.Write(returnText);
    context.Response.End();
   }
  }  
 }
 public bool IsReusable {
  get {
   return false;
  }
 }
 /// 

 /// 获取数据源的方法
 /// 
 /// 数据源
 private DataTable getDB()
 {
  DataTable dt = new DataTable();
  dt.Columns.Add("id");
  dt.Columns.Add("name");
  dt.Columns.Add("age");
  dt.Rows.Add(new object[] { "000001", "张三", "26" });
  dt.Rows.Add(new object[] { "000002", "张晓", "26" });
  dt.Rows.Add(new object[] { "000003", "张岚", "27" });
  dt.Rows.Add(new object[] { "000004", "李四", "25" });
  dt.Rows.Add(new object[] { "000005", "李星", "27" });
  return dt;
 }
}