disable buttons of alv

[Former Member]

Hello,

I have disabled a button of the alv when I call the dynpro at pbo. So how can I set the status of the button to active by editing user command.

[Former Member]

Is the button in the toolbar of the ALV?

[Former Member]

yes it is in the alv toolbar, i have added into it, the problem is that I want to display the button when I click on another button.

[former_member156446]

use set pf-status < >.

on user command set 1 2 on other user command set-pf status 1 2

[Former Member]

i dont mean the pf-status, I mean the tollbar which I create with the event toolbar

[Former Member]

I hope you are using the class CL_GUI_ALV_GRID for fdisplay. In that class u have a method SET_TOOLBAR_BUTTONS in which u can disable and enable your toolbar buttons..

[Former Member]

do have me an example for this mentioned method? Yes I use this class for creating the alv

[uwe_schieferstein]

Hello

You may have a look at the (unfortunately misformatted) coding of sample report ZUS_SDN_ALVGRID_EDITABLE_8A in thread

The crucial point are:

(0) Define event handler for event TOOLBAR.

(1) Call method go_grid->set_toolbar_interactive( ) at PBO of your screen.

(2) Within method HANDLE_TOOLBAR inactivate your ALV toolbar button.

When the user pushes a function which should enable the toolbar button then set a flag and store this (e.g. in a static attribute of your event handler class: LCL_EVENTHANDLER=>MD_SWITCH).

Whitin method HANDLE_TOOLBAR you evalute the switch:

IF ( md_switch = abap_true ).
 " activate toolbar function again -> or do not inactivate it
ELSE.
" inactivate toolbar function
ENDIF.

Regards

Uwe

[Former Member]

but when I activate the button shall I have to create the toolbar complete new for the alv?

[uwe_schieferstein]

Hello

The ALV toolbar is there by default. In the event handler method HANDLE_TOOLBAR you manipulate the toolbar functions as you like:

data: ls_button   TYPE stb_button.

LOOP AT e_object->mt_toolbar INTO ls_button.
  CASE ls_button-function.
    WHEN '...'.
       ls_button-disabled = abap_true.  " inactivate

   WHEN '...'.
      " do nothing -> i.e. function active

   WHEN OTHERS.
      DELETE e_object->mt_toolbar INDEX syst-tabix.  " remove from toolbar
  ENDCASE.

   MODIFY e_object->mt_toolbar FROM ls_button INDEX syst-tabix.
ENDLOOP.

Regards

Uwe

[Former Member]

Thank you Uwe for your answer, it works very well, but one question.

In my coding I create several buttons in the toolbar of the ALV.

CLASS lcl_event_handler IMPLEMENTATION.

  METHOD toolbar.
    PERFORM toolbar USING e_object.
  ENDMETHOD.                    "toolbar

ENDCLASS. "lcl_event_handler IMPLEMENTATION

FORM toolbar USING p_e_object TYPE REF TO cl_alv_event_toolbar_set.

  CLEAR gs_toolbar.
  gs_toolbar-function  = 'OPEN'.
  gs_toolbar-icon      = icon_status_open.
  gs_toolbar-text      = text-003.
  gs_toolbar-butn_type = '0'.
  gs_toolbar-quickinfo = text-003.
  gs_toolbar-checked   = space.
  gs_toolbar-disabled  = 'X'.
  APPEND gs_toolbar TO p_e_object->mt_toolbar.

  CLEAR gs_toolbar.
  gs_toolbar-function  = 'POST'.
  gs_toolbar-icon      = icon_execute_object.
  gs_toolbar-text      = text-002.
  gs_toolbar-butn_type = '0'.
  gs_toolbar-disabled  = space.
  gs_toolbar-quickinfo = text-002.
  gs_toolbar-checked   = space.
  APPEND gs_toolbar TO p_e_object->mt_toolbar.

  LOOP AT p_e_object->mt_toolbar INTO gs_toolbar.

    IF gf_check = 2.

        CASE gs_toolbar-function.
          WHEN 'OPEN'.
            gs_toolbar-disabled  = 'X'.
            MODIFY p_e_object->mt_toolbar FROM gs_toolbar INDEX syst-tabix.

          WHEN 'POST'.
            gs_toolbar-disabled  = space.
            MODIFY p_e_object->mt_toolbar FROM gs_toolbar INDEX syst-tabix.

        ENDCASE.

Endif.

Endform.

The problem is, when I click on a button, he always generate the whole buttons which I add to the toolbar.

How can I solve this that he only has to build the toolbar once and then he only change the disabled parameter?

[uwe_schieferstein]

Hello

I assume your problem is that the custom buttons are created multiple times. Well, then the solution is quite simple:

  READ TABLE p_e_object->mt_toolbar TRANSPORTING NO FIELDS
    WITH KEY function = 'OPEN'.
  IF ( syst-subrc ne 0 ).
  CLEAR gs_toolbar.
  gs_toolbar-function  = 'OPEN'.
  gs_toolbar-icon      = icon_status_open.
  gs_toolbar-text      = text-003.
  gs_toolbar-butn_type = '0'.
  gs_toolbar-quickinfo = text-003.
  gs_toolbar-checked   = space.
  gs_toolbar-disabled  = 'X'.
  APPEND gs_toolbar TO p_e_object->mt_toolbar.
  ENDIF.

Regards

Uwe

[Former Member]

but when I look to the standard demo alv grid examples, he goes only one time in the event method toolbar, but when I look in my program he goes everytime in the toolbar event when I click on a button which I append to the ALV toolbar.

[uwe_schieferstein]

Hello

Because your ALV toolbar is indeed interactive, i.e. depending on certain conditions you want to activate or inactive buttons you need to call the HANDLE_TOOLBAR method every time you pass PBO.

If you statically add additional buttons to the ALV toolbar then you can call method go_grid->set_toolbar_interactive( ) before you display your screen. The event handler method will be called only once.

Regards

Uwe