请高手指点，初学ajax，ie提示出错：'Sys.WebForms.PageRequestManagerServerErrorException:...404

littlespring 2007-09-17 11:27:17

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
</head>
<body topmargin ="0">
<form id="form1" runat="server" >
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<%= DateTime.Now.ToString() %>
</ContentTemplate>
</asp:UpdatePanel>
<br />
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click1" />
</form>
</body>
</html>

using System;
using System.Data;
using System.Configuration;
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;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
ScriptManager1.RegisterAsyncPostBackControl(Button1);
}
protected void Button1_Click1(object sender, EventArgs e)
{
Label1.Text = "first ajax program!";
UpdatePanel1.Update();
}
}

这个是书上的例子，可是怎么老是出错，google了一下，还是看不出哪里错了，请高手指点一下。

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qingtian6 2007-09-17

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webconfig里做了配置了没？

littlespring 2007-09-17

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错误提示：'Sys.WebForms.PageRequestManagerServerErrorException: An uknown error occurred while processing the request on the server. The status code returned from the server was: 404.

littlespring 2007-09-17