A single site-wide Master Page that applies to all the content pages.
Aection-wide Master Pages that apply to only the pages contained in a particular section.
File: Site.master
<%@ Master Language="C#" %>
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
Site Master
File: SectionProducts.master
<%@ Master Language="C#" MasterPageFile="~/Site.master" %>
id="Content1"
ContentPlaceHolderID="ContentPlaceHolder1"
Runat="server">
id="ContentPlaceHolder1"
Runat="server" />
id="ContentPlaceHolder2"
Runat="server" />
id="ContentPlaceHolder3"
Runat="server" />
File: SectionServices.master
<%@ Master Language="C#" MasterPageFile="~/Site.master" %>
id="Content1"
ContentPlaceHolderID="ContentPlaceHolder1"
Runat="server">
id="ContentPlaceHolder1"
Runat="server" />
id="ContentPlaceHolder2"
Runat="server" />
File: Products.aspx
<%@ Page Language="C#" MasterPageFile="~/SectionProducts.master" %>
ID="Content1"
ContentPlaceHolderID="ContentPlaceHolder1"
Runat="Server">
Products, Products, Products
Products, Products, Products
ID="Content2"
ContentPlaceHolderID="ContentPlaceHolder2"
Runat="Server">
Products, Products, Products
Products, Products, Products
ID="Content3"
ContentPlaceHolderID="ContentPlaceHolder3"
Runat="Server">
Products, Products, Products
Products, Products, Products
File: Services.aspx
<%@ Page Language="C#" MasterPageFile="~/SectionServices.master" Title="Services" %>
ID="Content1"
ContentPlaceHolderID="ContentPlaceHolder1"
Runat="Server">
Services, Services, Services
Services, Services, Services
ID="Content2"
ContentPlaceHolderID="ContentPlaceHolder2"
Runat="Server">
Services, Services, Services, Services, Services
Services, Services, Services, Services, Services