The following strings are valid for the first argument of the DateAdd function.

1. yyyy - year
2. q - quarter year
3. m - month
4. y - day of year
5. d - day
6. w - weekday
7. ww - week of year
8. h - hour
9. m - minute
10. s - second

ASP.NET attempts to simplify developers' transition from Windows application development to web development by offering the ability to build pages composed of controls similar to a Windows user interface. A web control, such as a button or label, functions in very much the same way as its Windows counterpart: code can assign its properties and respond to its events. Controls know how to render themselves: whereas Windows controls draw themselves to the screen, web controls produce segments of HTML and JavaScript which form part of the resulting page sent to the end-user's browser.