ajax不识别控件的问题

小弟最近在学习ajax的有关技术，碰到一个特别怪的小问题，在网上也找不到合适的回答，在UpdateProgress中放入一个button按钮和一个timer控件，在后台编程的时候却提示找不到那个按钮！不知大家有没遇过类似的问题~~　请大家帮忙看一下，谢谢了！源码如下：
Default.aspx<%@ 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>
    <form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:UpdateProgress ID="UpdateProgress1" runat="server">
            <ProgressTemplate>
                <asp:Button ID="Button1" runat="server" Text='<%#"当前计数器的值为：" + count%>' />
                <asp:Timer ID="Timer1" runat="server" OnTick="Timer1_Tick" Interval="1000">
                </asp:Timer>
                &nbsp;
            </ProgressTemplate>
        </asp:UpdateProgress>
    </form>
</body>
</html>Default.aspx.csusing 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 static int count = 0;
    protected void Page_Load(object sender, EventArgs e)
    {
        
    }
    protected void Timer1_Tick(object sender, EventArgs e)
    {
        count++;
        Button2.DataBind(); //此处提示当前上下文中不包含Button1
    }
}

解决方案 »

  1.   

    Button2.DataBind(); //此处提示当前上下文中不包含Button1 
    呵呵
      

  2.   

    不好意思！　呵呵，button2是我为了测试临时加的一个按钮，往帖子上放的时候没改过来~~~　应该是Button1.DataBind()才对！
    但那个问题始终存在啊~~　还请大家帮忙！　谢谢了！！
      

  3.   

    问题解决了! 是Web.Config文件没有作相应调整的原因!!!请对照以下的代码进行补充修改：
    新的Web.Config文件在你安装ajax后一般在“C:\Program Files\Microsoft ASP.NET\ASP.NET 2.0 AJAX Extensions\v1.0.61025”下，不同的版本可能位置不同，我下面贴的是v1.0.61025的<?xml version="1.0"?>
    <configuration>
      <configSections>
        <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
          <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
              <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false"/>
            <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
              <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" />
              <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" />
              <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" />
            </sectionGroup>
          </sectionGroup>
        </sectionGroup>
      </configSections>  <system.web>
        <pages>
          <controls>
            <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
          </controls>
          <tagMapping>
            <add tagType="System.Web.UI.WebControls.CompareValidator" mappedTagType="System.Web.UI.Compatibility.CompareValidator, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
            <add tagType="System.Web.UI.WebControls.CustomValidator" mappedTagType="System.Web.UI.Compatibility.CustomValidator, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
            <add tagType="System.Web.UI.WebControls.RangeValidator" mappedTagType="System.Web.UI.Compatibility.RangeValidator, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
            <add tagType="System.Web.UI.WebControls.RegularExpressionValidator" mappedTagType="System.Web.UI.Compatibility.RegularExpressionValidator, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
            <add tagType="System.Web.UI.WebControls.RequiredFieldValidator" mappedTagType="System.Web.UI.Compatibility.RequiredFieldValidator, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
            <add tagType="System.Web.UI.WebControls.ValidationSummary" mappedTagType="System.Web.UI.Compatibility.ValidationSummary, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
          </tagMapping>
        </pages>
        <!--
              Set compilation debug="true" to insert debugging
              symbols into the compiled page. Because this
              affects performance, set this value to true only
              during development.
        -->
        <compilation debug="false">
          <assemblies>
            <add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
          </assemblies>
        </compilation>    <httpHandlers>
          <remove verb="*" path="*.asmx"/>
          <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
          <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/>
        </httpHandlers>    <httpModules>
          <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        </httpModules>
      </system.web>  <system.web.extensions>
        <scripting>
          <webServices>
          <!-- Uncomment this line to customize maxJsonLength and add a custom converter -->
          <!--
          <jsonSerialization maxJsonLength="500">
            <converters>
              <add name="ConvertMe" type="Acme.SubAcme.ConvertMeTypeConverter"/>
            </converters>
          </jsonSerialization>
          -->
          <!-- Uncomment this line to enable the authentication service. Include requireSSL="true" if appropriate. -->
          <!--
            <authenticationService enabled="true" requireSSL = "true|false"/>
          -->      <!-- Uncomment these lines to enable the profile service. To allow profile properties to be retrieved
               and modified in ASP.NET AJAX applications, you need to add each property name to the readAccessProperties and
               writeAccessProperties attributes. -->
          <!--
          <profileService enabled="true"
                          readAccessProperties="propertyname1,propertyname2"
                          writeAccessProperties="propertyname1,propertyname2" />
          -->
          </webServices>
          <!-- 
          <scriptResourceHandler enableCompression="true" enableCaching="true" />
          -->
        </scripting>
      </system.web.extensions>  <system.webServer>
        <validation validateIntegratedModeConfiguration="false"/>
        <modules>
          <add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        </modules>
        <handlers>
          <remove name="WebServiceHandlerFactory-ISAPI-2.0"/>
          <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode"
               type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
          <add name="ScriptResource" verb="GET" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
        </handlers>
      </system.webServer>
    </configuration>