[求助]如何在javascript中调用服务器端的方法？？
如我想当用户关闭网页时，就调用javascript中的logout方法，而logout方法中又调用了后台的test方法，请问要怎么写？
代码如下：
<%@ Page Language= "C# " AutoEventWireup= "true " CodeFile= "Default2.aspx.cs " Inherits= "Default2 " %>
<!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 " language = "javascript ">
function logout()
{
Default2.test();
}
</script>
</head>
<body onunload= "logout(); " >
<form id= "form1 " runat= "server ">
<div>
</div>
</form>
</body>
</html>
_______________________________cs代码如下_________________________
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 Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
AjaxPro.Utility.RegisterTypeForAjax(typeof(Default2)); //必要的
}
public void test()
{
Response.Write( " <script> alert( 'sdf！ '); </script> ");
}
}
[解决办法]
试一下，在前台添加 <body onunload= "logout(); "...
添加一个LinkButton控件，将Text属性设为空，ID设为“doSth”，双击LinkButton，在后台LinkButton的Click事件中调用test（）方法
前台脚本添加一句
function logout()
{
......
__doPostBack( 'doSth ', ' ');
}
[解决办法]
原来你用的是Ajax...
添加Ajax.dll或者AjaxPro.dll的引用了么?
test()方法上面加这个
[Ajax.AjaxMethod()]
public void test()
{
Response.Write( " <script> alert( 'sdf！ '); </script> ");
}