Home/ Questions/Q 6808903
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-26T20:00:48+00:00

i am trying to run my javascript on every child page, masterpagecode: <%@ Master

  • 0

i am trying to run my javascript on every child page, masterpagecode:

<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Site1.master.cs" Inherits="WindowonUnload.Site1" %>

<!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>
    <asp:ContentPlaceHolder ID="head" runat="server">

    </asp:ContentPlaceHolder>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
         <script>
             //window.addEventListener('unload', function () { alert('hahaha'); });
             window.onunload = function () {
                 alert('from webf master');
             }
    </script>
        </asp:ContentPlaceHolder>
    </div>
    </form>
</body>
</html>

childpage:

<%@ Page Title="" Language="C#" MasterPageFile="~/Site1.Master" AutoEventWireup="true"
    CodeBehind="WebForm1.aspx.cs" Inherits="WindowonUnload.WebForm1" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">

</asp:Content>

what am I doing wrong?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Put your javascript code inside MasterPage <Head> tag

    <head runat="server">
    <title></title>
    <script type="text/jscript">
             window.onunload = function () {alert('from webf master');}
    </script>
</head>
    • 0