Kbase P111292: Is it possible to invoke the code of a generic, ANYWHERE trigger from a widget-level trigger for the
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
16/10/2008 |
|
Status: Unverified
GOAL:
Is it possible to invoke the code of a generic, ANYWHERE trigger from a widget-level trigger for the same event
FIX:
No, it's not possible.
For example, if you have:
ON 'ROW-DISPLAY':U ANYWHERE
DO:
... generic code ...
END.
and then a widget-level trigger like:
ON 'ROW-DISPLAY':U OF brBrowse IN FRAME fFrame
DO:
... widget-specific code ...
END.
then there is no direct way to invoke the ANYWHERE ROW-DISPLAY trigger from the browser-specific one.
One possible solution is to move the code for the ANYWHERE trigger into an internal procedure and then use the PUBLISH/SUBSCRIBE mechanism from but the ANYWHERE and the widget-level trigger. For example:
/* Generic trigger definition. */
ON 'ROW-DISPLAY':U ANYWHERE
DO:
PUBLISH "genericRowDisplay" (SELF).
END.
/* Specific trigger. */
ON 'ROW-DISPLAY':U OF brBrowser IN FRAME fFrame
DO:
.... widget-specific code ....
PUBLISH "genericRowDisplay" (SELF).
END.
/* Some procedure will do the following: */
SUBSCRIBE PROCEDURE THIS-PROCEDURE TO "genericRowDisplay" ANYWHERE.
PROCEDURE genericRowDisplay:
DEFINE INPUT PARAMETER phBrowse AS HANDLE NO-UNDO.
.... generic code ...
END.