Since ASP.NET 1.x lacked site navigation support, Web developers had to build this functionality themselves, taking into consideration UI, site mapping and the like. With ASP.NET 2.0, that's all taken care of, thanks to built-in site navigation features.
To walk Web developers through this new functionality, Scott Mitchell, writer, consultant and founder of 4GuysFromRolla.com, has assembled a four-part tutorial on site navigation in ASP.NET 2.0. Each chapter includes screen shots and code samples.
Part 1 identifies ASP.NET 2.0's navigation Web controls and explains how to define and display a site map.
Part 2 provides hints on working programmatically with site maps. Mitchell also describes breadcrumbs, which let end users trace their navigation through an application and, if they get lost, go back to the home page.
Part 3 discusses security trimming, a feature that ensures logged-in cannot see site map nodes they are not authorized to view.
Part 4, which was published earlier this month, goes into the site map provider. ASP.NET 2.0 contains a standard API but also lets developers create their own; this, Mitchell writes, allows for a custom implementation of the site navigation system that is nonetheless accessible through the SiteMap class.
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Reference: ASP.NET 2.0 Learning Guide
Tip: Master Pages in ASP.NET 2.0 drive uniform design
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