Which is an optional element of an event procedure?

  1. End Sub

  2. Handles

  3. Object_Event

  4. Statements

  5. Sub


Correct Option: D
Explanation:

An event procedure is a subroutine that is called in response to an event. The event procedure is defined using the Sub keyword, followed by the name of the event procedure, the Handles keyword, and the name of the event. The event procedure can contain any number of statements.

The End Sub keyword is not optional, as it marks the end of the event procedure. The Handles keyword is also not optional, as it specifies the event that will trigger the event procedure. The Object_Event identifier is optional, and it can be used to specify the object and event that will trigger the event procedure. The Statements are optional, as the event procedure can be empty.

Correct Option: D. Statements

The Statements element is optional in an event procedure. The event procedure can be empty, or it can contain any number of statements. The statements in the event procedure will be executed when the event is triggered.

Here is an example of an event procedure:

Sub btnClick(sender As Object, e As EventArgs)
'This is an event procedure that is triggered when the button is clicked.
'The event procedure contains two statements.

MsgBox("The button was clicked!")
End Sub

As you can see, the event procedure contains two statements. The first statement displays a message box, and the second statement ends the event procedure.

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