RaiseCallbackEvent没有运行

环境Win7,VS2008(sp1),SQL2008Express.
public void RaiseCallbackEvent(string txtFirstName) {....} 不会运行到这个方法.
代码如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ClientCallbacks.aspx.cs" Inherits="ClientCallbacks" %><!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>未命名页面</title>
    <script type="text/JavaScript">
    function DoSearch() 
    {
        var txtFirstName = document.getElementById("txtUserName");
        CallServer(txtFirstName.value, '');
        Results.innerText = txtFirstName.value;
        Span1.innerText = "1";
        Span2.innerText = "2";
        Span3.innerText = "3";
    }    function ReceiveServerData(txtUserInfo)
    {
        Span3.innerText = "三";
        Results.innerText = txtUserInfo;
        
    }
    setInterval('DoSearch()', 2000)
  </script></head>
<body>
    <form id="form1" runat="server">
    <div>
        姓名：<input id="txtUserName" type="text" value="Janet" />
        <br />
            <span id="Results" style="background-color: pink; width: 500px;"></span>
        <br />
            <span id="Span1" style="background-color: pink; width: 500px;"></span>
        <br />
            <span id="Span2" style="background-color: pink; width: 500px;"></span>
            <br />
            <span id="Span3" style="background-color: pink; width: 500px;"></span>
    </div>
    </form>
</body>
</html>
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 System.Data.SqlClient;public partial class ClientCallbacks : System.Web.UI.Page,ICallbackEventHandler
{
protected string txtUserInfo; //用户基本信息 protected void Page_Load(object sender, EventArgs e)
{
//动态注册JavaScript
String cbReference = Page.ClientScript.GetCallbackEventReference(this, "arg", "ReceiveServerData", "context");
String callbackScript;
callbackScript = "function CallServer(arg, context)" + "{ " + cbReference + "} ;";
Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "CallServer", callbackScript, true);
} //引发Callback事件处理
public void RaiseCallbackEvent(string txtFirstName)
{
        this.txtUserInfo = "引发Callback事件处理";
if (txtFirstName != null)
{
SqlConnection conn = new SqlConnection("Data Source=.\\sqlexpress;Initial Catalog=Northwind;User ID=sa;Password=zhoushi");
            conn.Open(); SqlCommand cmd = new SqlCommand("select EmployeeID,FirstName,City,Address from Employees where FirstName=@FirstName", conn);
cmd.Parameters.Add("@FirstName", SqlDbType.NVarChar, 10).Value = txtFirstName;
SqlDataReader dr = cmd.ExecuteReader(); if (dr.Read())
{
txtUserInfo = "员工代号：" + dr["EmployeeID"] + "  ,";
txtUserInfo += "姓名：" + dr["FirstName"] + "  ,";
txtUserInfo += "居住城市：" + dr["City"] + "  ,";
txtUserInfo += "地址：" + dr["Address"].ToString().Replace("\r\n","") + "  ,";
txtUserInfo += "服务器查询时间：" + DateTime.Now.ToLongTimeString();
}
else
{
if (String.IsNullOrEmpty(txtFirstName))
{
txtUserInfo = "请输入姓名";
}
else
{
txtUserInfo = "查无此人！";
}
} cmd.Dispose();
dr.Dispose();
conn.Dispose();
}
} //返回Callback结果
public string GetCallbackResult()
{
        return txtUserInfo + "返回员工基本信息"; //返回员工基本信息
}
}

解决方案 »

  1.   

    重贴一下代码,看的清楚些.
    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 System.Data.SqlClient;public partial class ClientCallbacks : System.Web.UI.Page,ICallbackEventHandler
    {
    protected string txtUserInfo; //用户基本信息 protected void Page_Load(object sender, EventArgs e)
    {
    //动态注册JavaScript
    String cbReference = Page.ClientScript.GetCallbackEventReference(this, "arg", "ReceiveServerData", "context");
    String callbackScript;
    callbackScript = "function CallServer(arg, context)" + "{ " + cbReference + "} ;";
    Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "CallServer", callbackScript, true);
    } //引发Callback事件处理
    public void RaiseCallbackEvent(string txtFirstName)
    {
            this.txtUserInfo = "引发Callback事件处理";
    if (txtFirstName != null)
    {
    SqlConnection conn = new SqlConnection("Data Source=.\\sqlexpress;Initial Catalog=Northwind;User ID=sa;Password=zhoushi");
                conn.Open(); SqlCommand cmd = new SqlCommand("select EmployeeID,FirstName,City,Address from Employees where FirstName=@FirstName", conn);
    cmd.Parameters.Add("@FirstName", SqlDbType.NVarChar, 10).Value = txtFirstName;
    SqlDataReader dr = cmd.ExecuteReader(); if (dr.Read())
    {
    txtUserInfo = "员工代号：" + dr["EmployeeID"] + "  ,";
    txtUserInfo += "姓名：" + dr["FirstName"] + "  ,";
    txtUserInfo += "居住城市：" + dr["City"] + "  ,";
    txtUserInfo += "地址：" + dr["Address"].ToString().Replace("\r\n","") + "  ,";
    txtUserInfo += "服务器查询时间：" + DateTime.Now.ToLongTimeString();
    }
    else
    {
    if (String.IsNullOrEmpty(txtFirstName))
    {
    txtUserInfo = "请输入姓名";
    }
    else
    {
    txtUserInfo = "查无此人！";
    }
    } cmd.Dispose();
    dr.Dispose();
    conn.Dispose();
    }
    } //返回Callback结果
    public string GetCallbackResult()
    {
            return txtUserInfo + "返回员工基本信息"; //返回员工基本信息
    }
    }
      

  2.   

    callbackScript = "function CallServer(arg, context)" + "{ " + cbReference + "} ;";callbackScript = "function CallServer(arg, context)" + "{ " + cbReference + ";}";
      

  3.   

    把 "} ;"; 修改成";}";还是不行.在IE里用工具调试,发现执行了//<![CDATA[
    function CallServer(arg, context) { WebForm_DoCallback('__Page',arg,ReceiveServerData,context,null,false); } //]]>
    下面这个没执行:    function ReceiveServerData(txtUserInfo)
        {
            Results.innerText = txtUserInfo;
        }
    下面两个方法跟踪不了:public void RaiseCallbackEvent(string txtFirstName)
    public string GetCallbackResult()
      

  4.   


    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="ClientCallbacks.aspx.cs" Inherits="ClientCallbacks" %><!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></title> 
        <script type="text/JavaScript"> 
        function DoSearch() 
        { 
            var txtFirstName = document.getElementById("txtUserName"); 
            CallServer(txtFirstName.value, ''); 
            Results.innerText = txtFirstName.value; 
            Span1.innerText = "1"; 
            Span2.innerText = "2"; 
            Span3.innerText = "3"; 
        }     function ReceiveServerData(txtUserInfo) 
        { 
            Span3.innerText = "三"; 
            Results.innerText = txtUserInfo; 
            
        } 
        setInterval('DoSearch()', 2000) 
      </script> </head> 
    <body> 
        <form id="form1" runat="server"> 
        <div> 
            姓名： <input id="txtUserName" type="text" value="Janet" /> 
            <br /> 
                <span id="Results" style="background-color: pink; width: 500px;"> </span> 
            <br /> 
                <span id="Span1" style="background-color: pink; width: 500px;"> </span> 
            <br /> 
                <span id="Span2" style="background-color: pink; width: 500px;"> </span> 
                <br /> 
                <span id="Span3" style="background-color: pink; width: 500px;"> </span> 
        </div> 
        </form> 
    </body> 
    </html> 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;public partial class ClientCallbacks : System.Web.UI.Page, ICallbackEventHandler 
    {
        protected string txtUserInfo; //用户基本信息     protected void Page_Load(object sender, EventArgs e)
        {
            //动态注册JavaScript 
            String cbReference = Page.ClientScript.GetCallbackEventReference(this, "arg", "ReceiveServerData", "context");
            String callbackScript;
            callbackScript = "function CallServer(arg, context)" + "{ " + cbReference + ";}";
            Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "CallServer", callbackScript, true);
        }    //引发Callback事件处理 
        public void RaiseCallbackEvent(string txtFirstName)
        {
            this.txtUserInfo = "引发Callback事件处理";        
        }    //返回Callback结果 
        public string GetCallbackResult()
        {
            return txtUserInfo + "返回员工基本信息"; //返回员工基本信息 
        } }
    运行正常你先改成这样，看能否运行，很可能是你数据库查询的部分出错了
      

  5.   

    还是不行,IE没没有显示:引发Callback事件处理返回员工基本信息.
      

  6.   

    应该和你的环境有关，有可能是IE 的问题，你换个XP 的系统 IE6 OR IE7
      

  7.   

    准备用它试试:Virtual Windows XP Mode (XPM or VXP) for Windows 7
      

  8.   

    在Win7里安装IIS7,把网发布到IIS上就正常了.
    感谢阿非,lebeay.