Let's say I have a Default.aspx which has a frameset settings, and it contains two frames link to Menu.aspx and Content.aspx. Here is the html code for the Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Default" %> <!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>xxxx</title> </head> <frameset cols="20%,80%"> <frame name="Menu" src=<%= GetMenuFrame()%> /> <frame name="Content" src=<%= GetContentFrame()%> /> </frameset> </html>