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In C# is there any real difference (other than syntax) under the hood between:
myButton.Click += new EventHandler(myMemberMethod);
and
myButton.Click += myMemberMethod;
?
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Use the EventHandler delegate for all events that do not include event data. Use the EventHandler<TEventArgs> delegate for events that include data about the event. These delegates have no return type value and take two parameters (an object for the source of the event, and an object for event data).
In general, an event handler has the name of the event, preceded by "on." For example, the event handler for the Focus event is onFocus. Many objects also have methods that emulate events. For example, button has a click method that emulates the button being clicked.
In programming, an event handler is a callback routine that operates asynchronously once an event takes place. It dictates the action that follows the event. The programmer writes a code for this action to take place. An event is an action that takes place when a user interacts with a program.
Answer: Function refers to an event handler.
The second method is a shortcut to the first one, it was introduced in C# 2.0
See also this thread.
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