ASP.NET 2.0客户端回调功能实现

前台
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CallBackExample.aspx.cs" Inherits="Ajax_CallBackExample" %>

<!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 type="text/javascript">
    function CallServer(inputcontrol,context)
    {
        context.innerHTML="Loading..";
        
        arg=inputcontrol.value;
        <%= ClientScript.GetCallbackEventReference(this, "arg", "ReceiveServerData", "context")%>; 
    }
    
    function ReceiveServerData(result,context)
    {
        context.innerHTML=result;
    }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <input id="Button1" type="button" onclick="CallServer(TextBox1,Label1)" value="button" />
        <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    </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 Ajax_CallBackExample : System.Web.UI.Page,System.Web.UI.ICallbackEventHandler
{
    private string result;
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    public void RaiseCallbackEvent(string eventArgument)
    {
        result = "return from server "+eventArgument;
    }

    public string GetCallbackResult()
    {
        return result;
    }
}

ASP.NET 2.0客户端回调功能实现
posted @ 2008-01-11 15:38  拒绝潜水的鱼  阅读(148)  评论(1)  编辑  收藏  举报