Data Web Controls Enhancements in ASP.NET 4.0
Traditionally, developers using Web controls enjoyed increased productivity but at the cost of control over the rendered markup. For instance, many ASP.NET controls automatically wrap their content in <code><table></code> for layout or styling purposes. This behavior runs counter to the web standards that have evolved over the past several years, which favor cleaner, terser HTML; sparing use of tables; and <a href="http://en.wikipedia.org/wiki/Cascading_Style_Sheets">Cascading Style Sheets (CSS)</a> for layout and styling. Furthermore, the <code><table></code> elements and other automatically-added content makes it harder to both style the Web controls using CSS and to work with the controls from client-side
