Provides a base class for all Microsoft ASP.NET AJAX behaviors.
var a = new MyBehavior();
When overridden in a derived class, initializes an instance of that class.
A behavior is a component that extends the functionality of the DOM element that it is associated with.
The Behavior class should not be instantiated directly; it is a base class for other behaviors to derive from. For information about how to create custom behaviors that derive from this class, see Adding Client Behaviors to Web Server Controls by Using ASP.NET AJAX Extensions.