DragLeave Event
The DragLeave event occurs during a drag-and-drop operation when the mouse cursor leaves a field that will accept the object being dragged or when the user cancels a drag-and-drop operation.
This event has the following syntax:
on dragleave [activefieldname]
activefieldname is unnecessary if the statement is in a field script.
The following attribute of the FrameExec class can be used in the DragLeave event block:
TriggerField
Specifies the field that the cursor has just left