Event Properties

The key to the difference between the Microsoft Access and Visual Basic CBF models is the event property. Each object in Microsoft Access has a set of event properties that correspond to each event to which the object can respond. For example, the following table lists some of the event properties and corresponding events for a check box.

Event Property	Event
OnGotFocus	GotFocus
OnKeyDown	KeyDown
OnKeyPress	KeyPress
OnKeyUp	KeyUp
OnLostFocus	LostFocus
OnMouseDown	MouseDown
OnMouseMove	MouseMove
OnMouseUp	MouseUp

You can specify a response to an event by setting the object's corresponding event property. When an event occurs that an object can respond to, Microsoft Access uses the setting of the object's corresponding event property to determine how to respond:

If the event property is blank, Microsoft Access responds to the event only with its built-in behavior.
If the event property is set to the name of a macro, Microsoft Access also runs the macro.
If the event procedure is set to the name of a function, Microsoft Access also runs the function.
If the event property is set to [Event Procedure], Microsoft Access Basic also executes the appropriate event procedure.