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初识AJAX

Posted on 2006-08-14 15:58  wander  阅读(197)  评论(0)  编辑  收藏  举报


1、ＨＴＭＬ代码：

<%@ Page language="c#" Codebehind="Default.aspx.cs" AutoEventWireup="false" Inherits="AjaxTest._Default" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
    <HEAD>
        <title>Default</title>
        <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
        <meta name="CODE_LANGUAGE" Content="C#">
        <meta name="vs_defaultClientScript" content="JavaScript">
        <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
        <script language="javascript" type="text/javascript">
            function getServerTime()
            {
                document.getElementById( 'Label1' ).innerText =  AjaxTest._Default.GetTime().value ;
            }
            function add( a,b )
            {
                var a1 = parseInt( a );
                var b1 = parseInt( b );
                document.getElementById( 'Label2' ).innerText = AjaxTest._Default.AddTwo( a1,b1 ).value;
            }            
            
        </script>
    </HEAD>
    <body>
        <form id="Form1" method="post" runat="server">
            <table cellpadding="0" cellspacing="0">
                <tr>
                    <td align="center" height="100" valign="bottom"><FONT color="red" size="6">计算两数之和</FONT></td>
                </tr>
                <tr>
                    <td>
                        <asp:TextBox id="TextBox1" runat="server"></asp:TextBox>
                        <asp:TextBox id="TextBox2" runat="server"></asp:TextBox>
                        <input id="Button" type="button" value="计算两数之和" onclick="add( document.getElementById( 'TextBox1' ).value,document.getElementById( 'TextBox2' ).value )">
                    </td>
                </tr>
                <tr>
                    <td><asp:Label id="Label2" runat="server" Width="416px" Height="48px"></asp:Label></td>
                </tr>
                <tr>
                    <td align="center" valign="bottom" height="100"><FONT color="red" size="6">获取服务器时间</FONT></td>
                </tr>
                <tr>
                    <td><input id="Button1" type="button" value="获得服务器时间" onclick="getServerTime();">
                        <asp:Label id="Label1" runat="server" Width="264px"></asp:Label></td>
                </tr>
            </table>
        </form>
    </body>
</HTML>

２、ＣＳ代码：
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace AjaxTest
{
    /// <summary>
    /// _Default 的摘要说明。
    /// </summary>
    public class _Default : System.Web.UI.Page
    {
        protected System.Web.UI.WebControls.TextBox TextBox1;
        protected System.Web.UI.WebControls.Label Label1;
        protected System.Web.UI.WebControls.Label Label2;
        protected System.Web.UI.WebControls.TextBox TextBox2;
    
        private void Page_Load(object sender, System.EventArgs e)
        {
            // 在此处放置用户代码以初始化页面
            AjaxPro.Utility.RegisterTypeForAjax( typeof( _Default ) );
        }

        Web 窗体设计器生成的代码
        [AjaxPro.AjaxMethod]
        public int AddTwo( int a,int b )
        {
            return a + b;
        }    
        [AjaxPro.AjaxMethod]
        public DateTime GetTime()
        {
            return DateTime.Now;
        }            
    }//end class
}

３、ＷＥＢＣＯＮＦＩＧ
<httpHandlers>
            <add verb="*" path="*.ashx" type="AjaxPro.AjaxHandlerFactory,AjaxPro" />
        </httpHandlers>