ASP.NET Dynamic Data is a framework that lets you create data-driven ASP.NET Web applications easily. It does this by automatically discovering data-model metadata at run time and deriving UI behavior from it. A scaffolding framework provides a functional Web site for viewing and editing data. You can easily customize the scaffolding framework by changing elements or creating new ones to override the default behavior. Existing applications can easily integrate scaffolding elements with ASP.NET pages. We will discuss how to 1) Create a data-driven web application using ASP.NET Dynamic Data 2) Add validation to the data model of your application 3) Customize ASP.NET Dynamic Data rendering 4) Customize ASP.NET Dynamic Data pages and 5) Customize ASP.NET Dynamic Data fields.