Events and Commands
Gary McLean Hall · Apress eBooks · 2010
An event is a programming construct that reacts to a change in state, notifying any endpoints that have registered for notification. They are ubiquitous in .NET generally, and this continues in WPF and Silverlight. Primarily, events are used to inform of user input via the mouse and keyboard, but their utility is not limited to that. Whenever a state change is detected, perhaps when an object has been loaded or initialized, an event can be fired to alert any interested third parties. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.