Sent when selection occurs in the control.
<p>
For example, selection occurs in a List when the user selects
an item or items with the keyboard or mouse. On some platforms,
the event occurs when a mouse button or key is pressed. On others,
it happens when the mouse or key is released. The exact key or
mouse gesture that causes this event is platform specific.
</p>
@param e an event containing information about the selection
Sent when selection occurs in the control. <p> For example, selection occurs in a List when the user selects an item or items with the keyboard or mouse. On some platforms, the event occurs when a mouse button or key is pressed. On others, it happens when the mouse or key is released. The exact key or mouse gesture that causes this event is platform specific. </p>
@param e an event containing information about the selection