Passing data between Popup to Parent window is easy once you are aware of the
method window.opener method
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="popup.aspx.vb" Inherits="WebApplication10.popup" %>
<!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 alertParent() {
var divparent = window.opener.document.getElementById("fromchild");
var chidmsg = document.getElementById("toparent");
divparent.innerText = chidmsg.value;
window.close();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="toparent" type="text" />
<input id="Button1" type="button" value="Respond to Parent" onclick="alertParent();" />
</div>
<hr />
Parent said : <span id="fromparent"></span>
</form>
</body>
</html>
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