Raises the Button.Command event of the System.Web.UI.WebControls.Button control.
The Button.Command event is raised when the System.Web.UI.WebControls.Button control is clicked. This event is commonly used when a command name, such as Sort, is associated with the System.Web.UI.WebControls.Button control. This allows you to create multiple System.Web.UI.WebControls.Button controls on a Web page and programmatically determine which System.Web.UI.WebControls.Button control is clicked.
The Button.Command event is raised through the control hierarchy in the form of the BubbleEvent.
Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.
The Button.OnCommand(CommandEventArgs) method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.