See also: Declaring Events with C#
Raising Events from a Class
For some reason, Microsoft has chosen not to implement the same interface for declaring Webforms Events as they did with Winforms Events. Anything to make it more confusing I suppose. Well - no matter - it's easy enough when you know how.
Although the Page_Load event appears to come along for free, the other page events must be declared by overriding the base function.
To declare a Webforms double-click your Webform to bring up the code view. Begin the declaration by typing:
Assuming you have Inteli-sense turned on, you will see the events listed on the Inteli-sense dropdown.
The download project declares the more common page events and writes a message to the debug window when invoked so you can see the order in which they fire.