Response.Write("<script   language=javascript>window.open('x.aspx','main');</script>"); 

Javascript刷新页面的几种方法：
1    history.go(0) 
2    location.reload() 
3    location=location 
4    location.assign(location) 
5    document.execCommand(''Refresh'') 
6    window.navigate(location) 
7    location.replace(location) 
8    document.URL=location.href 
框架刷新。
window.parent.frames[leftFrame1].location.reload();
Page.RegisterStartupScript("","<script language'=javascript'>window.parent.frames[leftFrame1].location.reload();
全页面跳转
        Response.Write("<script   language=javascript>parent.location.href='login.aspx';</script>"); 
οnclick="window.open('index.aspx','mainFrame'); 
 
iframe父子窗口间js方法调用
父窗口调用iframe子窗口方法<iframe name="myFrame" src="child.html"></iframe> 
myFrame.window.functionName(); 
iframe子窗口调用父窗口方法
parent.functionName();
父窗口页面
<html>   
<head>   
<script   type="text/javascript">   

function say() {
   alert("parent.html------>I'm at parent.html");
   } 

function callChild()
{   
   //document.frames("myFrame").f1();
   myFrame.window.say();
}   
</script>   
</head>   
    
<body>     
<input   type=button   value="调用child.html中的函数say()" οnclick="callChild()"> 
<iframe name="myFrame" src="child.html"></iframe> 
</body>   
</html>   
子窗口页面
<html>   
<head>   
<script type="text/javascript">
      
function say()   
{   
          alert("child.html--->I'm at child.html");   
} 

function callParent() {
   parent.say();
   } 
</script>   
</head>   
<body>   
<input   type=button   value="调用parent.html中的say()函数"   οnclick="callParent()">   
</body>   
</html>