Initiates when a form filler performs an
action that causes the drop-down list to appear, such as clicking
the arrow icon on the drop-down list or by tabbing into the drop-down
list and using the down arrow. This event initiates before the contents
of the drop-down list are displayed.
Note:
This
event applies only to the Drop-down List object.
Type
Interactive
event
Support
Client application
Availability
Acrobat and Adobe Reader
yes
HTML browser
no
Version
XFA
2.4
Example
You
can use this event to control the loading of large numbers of list
items. For example, you can use this event to load a fixed number
of records from a data source into a drop-down list. This improves
the performance of the form for the form filler at run time.
