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第一次接触Ajxa，实现对比客户端控件和服务器控件的区别

2008-09-29 01:10 260 查看

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!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>

</head>

<body>

<form id="form1" runat="server">

<div>

<input id="Button1" style="width: 115px" type="button" onclick="a()" value="button" />

<script language="javascript">

var xmlhttp=false;

function a()

{

xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");使用ie6

xmlhttp.onreadystatechange=ff;

xmlhttp.open("get","http://localhost:15834/ajax/Default.aspx?a=a",true);

xmlhttp.send("");

}

function ff()

{

if(xmlhttp.readyState==4)

{

alert(xmlhttp.responseText);

}

}

</script>

<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Button" /></div>

</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;

using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

if(Request .QueryString ["a"]!=null )

{

SqlDataAdapter DA = new SqlDataAdapter("select * from news",@"Data Source=F3539F15DC0840A\SQLEXPRESS;Initial Catalog=shengya;Integrated Security=True");

DataTable DT=new DataTable ();

DA .Fill (DT);

Response.ContentType = "text/xml";

Response.Write("请求返回！"+DT .Rows .Count );

Response.End();

}

}

protected void Button2_Click(object sender, EventArgs e)

{

SqlDataAdapter DA = new SqlDataAdapter("select * from news", @"Data Source=F3539F15DC0840A\SQLEXPRESS;Initial Catalog=shengya;Integrated Security=True");

DataTable DT = new DataTable();

DA.Fill(DT);

;

Response.Write("<script>alert('请求返回！" + DT.Rows.Count+"')</script>");

}

}

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