Is it possible to create nested master pages in an ASP.NET Web Application projects as one can do in ASP.NET Website projects?
I am using Visual Studio 2008 and working
Yes, from version 2 of the .NET framework, nested master pages have been supported. One caveat is that you won't get design time support in Visual Studio 2005 if you have nested master pages. This isn't an issue in VS 2008.
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="SecondLevelMaster.master.cs" Inherits="SecondLevelMaster" **MasterPageFile="~/RootMaster.master"** %>