居中显示用到了moveTO()方法；
关闭弹出窗时刷新父窗体用到了window.opener方法；
父窗体代码例如以下：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="弹出窗体.aspx.cs" Inherits="弹出窗体" %>
<!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></title>
<script type="text/javascript">
function cc() {
var hdc = window.open('ChildWin.aspx', '弹出框', 'width=900,height=450,top=300,left=300');
width = screen.width;
height = screen.height;
hdc.moveTo((width - 900)/2,(height-450)/2);//居中显示
}
</script>
</head>
<body >
<form id="form1" runat="server">
<div>
<input id="Button1" type="button" value="button" onclick="cc()"/></div>
</form>
</body>
</html>
子窗体代码例如以下：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ChildWin.aspx.cs" Inherits="ChildWin" %>
<!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></title>
<script type="text/javascript">
function myCheck() {
alert("关闭子窗体！");
window.opener.location.reload();
window.close();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:BulletedList ID="BulletedList1" runat="server" Width="526px">
<asp:ListItem>1</asp:ListItem>
<asp:ListItem>2</asp:ListItem>
<asp:ListItem>3</asp:ListItem>
<asp:ListItem>4</asp:ListItem>
<asp:ListItem>5</asp:ListItem>
<asp:ListItem>6</asp:ListItem>
<asp:ListItem>7</asp:ListItem>
<asp:ListItem>8</asp:ListItem>
</asp:BulletedList>
<br />
<input id="Button1" type="button" value="关闭" onclick="myCheck()"/></div>
</form>
</body>
</html>