Wednesday, September 30, 2020

Events associated with Screen Painter in SAP ABAP.

What are the events associated with Screen Painter?.


Events associated with Screen Painter in SAP ABAP.

            1. PROCESS BEFORE OUTPUT (PBO):

Ø  This event is triggered before the screen is displayed.

Ø  It can also be triggered while performing any action on the screen.

Ø  This is used to provide the default values to the screen fields.

Ø  It can also be used to format the screen elements dynamically.

            2. PROCESS AFTER INPUT (PAI):

Ø  This event is triggered after the Input values are provided to the screen.

Ø  This event is used to validate the input data on the screens.

Ø  It can also be used to process the screen data based on the performed action          (pressed push button menu item etc)

          3. PROCESS ON HELP-REQUEST (POH):

Ø  This event is triggered when the function key F1 or help icon (?) is pressed.

Ø  This event is used to provide the help documentation on the screen fields.

Ø  The T-code:   SE61/SO72 is used to maintain help documentation.

Ø  The standard function module ‘HELP_OBJECT_SHOW’ is used to display the maintain help documentation.

           4. PROCESS ON VALUE-REQUEST (POV):

Ø  This event is triggered in case of in case of function key F4 or search help icon is pressed.

Ø  This event is used to populate & display the custom search help on screen input fields.

Ø  The standard function module “F4IF_INT_TABLE_VALUE_REQUEST” is used to display the populated internal table data as search help. 

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