<script type="text/javascript">
function loadXMLDoc() {
var xmlhttp;
if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
}
else {// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("myDiv").innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("GET", "Ajax.aspx?t=" + Math.random(), true);
xmlhttp.send();
}
</script>
<h2>AJAX</h2>
<button type="button" onclick="loadXMLDoc()">请求数据</button>
<div id="myDiv"></div>
目标文件Ajax.aspx接收数据并返回
public partial class Ajax : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Response.Write(Request.QueryString["t"].ToString());
}
}