才学AJAX，问个简单问题，希望大家帮我看看，谢谢！
我用VS2005把一本书上的AJAX代码照抄了一边，但是报错~能告诉我怎么修改一下么？代码如下
Default.aspx
------------------------
<%@ Page Language= "C# " AutoEventWireup= "true " CodeFile= "Default.aspx.cs " Inherits= "_Default " %>
<!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> 无标题页 </title>
<script language= "javascript " type= "text/javascript " src= "lookup.js "> </script>
<script language= "jscript " type = "text/javascript ">
mainLoop = function()
{
val = escape(queryField.value);
if (lastVal != val)
{
var response =this.GetSearchItems(val);
showQueryDiv(response.value);
lastVal = val;
}
setTimeout( 'mainLoop() ', 100);
return true;
}
</script>
</head>
<body onload= "javascript:InitQueryCode( 'TextBox1 ') ">
<form id= "form1 " runat= "server ">
<div style= "text-align: center ">
<asp:TextBox ID= "TextBox1 " runat= "server "> </asp:TextBox> </div>
</form>
</body>
</html>
Default.aspx.cs
---------------------------------
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
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 System.Data.SqlClient;
using AjaxPro;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Utility.RegisterTypeForAjax(typeof(_Default));
}
[AjaxMethod()]
public ArrayList GetSearchItems(string query)
{
ArrayList items = new ArrayList();
string myConnectionString =
"Data Source=localhost;user id=sa;password=;initial catalog=pubs ";
string mySelectQuery =
string.Format(
"select fname from employee where CHARINDEX( '{0} ',LOWER(fname)) = 1 ",
query);
SqlConnection myConnection = new SqlConnection(myConnectionString);
SqlCommand myCommand = new SqlCommand(mySelectQuery, myConnection);
myConnection.Open();
SqlDataReader myReader =
myCommand.ExecuteReader(CommandBehavior.CloseConnection);
while (myReader.Read())
{
items.Add(myReader.GetString(0));
}
myReader.Close();
return items;
}
}
-----------------------------------
[解决办法]
你的TextBox的ID的确是 'TextBox1 '，但是，当页面在客户端被打开后，你看一下网页源代码。那个控件的ID已经变了，不是 'TextBox1 '了。所以，你在JS中用 'TextBox1 '引用就错了。
[解决办法]
你把Body上的Onload事件去掉。
在CS页面的PageLoad中写这样的句子：
Page.ClientScript.RegisterStartUpScript(this.Type, "test ", "InitQueryCode( "+TextBox1.ClientId+ ") ",true);
[解决办法]
这里好像不是clientid的问题
ajaxpro应该是这么调用函数的把
//var response =this.GetSearchItems(val);
var response =_Default.GetSearchItems(val);
