topic Re: to SET HANDLER for parameter value in Application Development and Automation Discussions

to SET HANDLER for parameter value

Former Member — Wed, 24 Mar 2010 13:59:09 GMT

Dear Gurus,

When the user enters a plant value in PARAMETER then i need to hide some of the Screen fields.

But the system has to trigger the PAI automatically

I know this can be acheived using CL_GUI_CFW but how to implement the SET HANDLER method for a parameter

I searched and found the HANDLER METHODS for ALV, TREE, TIMER etc but I want it for SELECTION-SCREEN elements.

I searched WIKI.SDN.SAP.COM and SDN and other stuff.

Please provide me sample code possibly

Please guide me.

Regards

Ramchander Rao.K

Re: to SET HANDLER for parameter value

Former Member — Wed, 24 Mar 2010 14:03:51 GMT

for selecion screens, I have this:

PARAMETERS p_cebe TYPE char01 RADIOBUTTON GROUP grp1 DEFAULT 'X' USER-COMMAND flag.
           PARAMETERS p_ceco TYPE char01 RADIOBUTTON GROUP grp1.

PARAMETERS: p_kokrs LIKE cobk-kokrs DEFAULT 'CORP' MODIF ID cec,
                                    p_gjahr LIKE cobk-gjahr                MODIF ID cec.


         PARAMETERS : p_rbukrs LIKE faglflexp-rbukrs MODIF ID ceb,
                                   p_ryear LIKE faglflexp-ryear   MODIF ID ceb,

AT SELECTION-SCREEN OUTPUT.
  LOOP AT SCREEN.
    IF p_cebe = 'X' AND screen-group1 = 'CEC'.
      screen-active = '0'.
    ENDIF.

    IF p_ceco = 'X' AND screen-group1 = 'CEB'.
      screen-active = '0'.
    ENDIF.

    MODIFY SCREEN.
  ENDLOOP.

Re: to SET HANDLER for parameter value

MarcinPciak — Wed, 24 Mar 2010 14:13:44 GMT

PAI gets triggered once user hits ENTER. Here you can code your "handler". What's wrong with that? Is it a screen field or some GUI control?

Regards

Marcin

Re: to SET HANDLER for parameter value

Former Member — Wed, 24 Mar 2010 14:24:15 GMT

Hi Marcin,

The requirement is once the user enters plant value then i need to disable some of the Screen fields.

if it is a radio button, check box or List box assigning a FCODE will trigger the PAI subsequently PBO so using LOOP AT SCREEN the screen field can be hidden.

Since it is a PARAMETER how to handle this. as user should not get a chance to enter a value in other field for that perticular Plant.

Respond to double click will do but it is equivalent to pressing enter like only

I searched and found the SET HANDLER methods available for TREE, CONTROLS, ALV but not for PARAMETERS or screen fields.

Please guide me

Regards

Ram

Re: to SET HANDLER for parameter value

MarcinPciak — Wed, 24 Mar 2010 14:31:01 GMT

Hi Ram,

Without pressing ENTER I believe you won't do that for normal screen field. I think tha alternative would be creating a listbox, which can have FCODE attached. So once the user selects the plant, you will get PAI triggered.

This is the only way I can think of.

Regards

Marcin