Kbase 12751: Order of Precedence for Trigger execution
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
10/05/1998 |
|
Order of Precedence for Trigger execution
Triggers are defined as event/object pairs. Events may thought of in
two types: ACTIONS and FUNCTIONS.
An ACTION consists of low-level events such as 'MOUSE-DOWN' or hitting
a particular key on the keyboard such as 'B' or 'CTRL-F'.
A FUNCTION consists of high-level events such as 'GO' or 'CHOOSE'.
The order of precedence in which triggers are executed is as follows:
1) ACTION
2) FUNCTION
3) Broader keyboard events such as ANY-KEY, ANY-ASCII or ANY-PRINTABLE
4) 'ANYWHERE' trigger in Parent such as 'ON event IN FRAME X ANYWHERE
DO: ... END.'
5) System Trigger such as 'ON event ANYWHERE DO:... END.'
Note: The cascading of triggers does not occur. Once a trigger is
chosen to execute, no additional triggers are executed for that
particular event.
Progress Software Technical Support Note # 12751