Select all checkbox in ALV tree

[Former Member]

Hi There,

I have developed a report using ALV tree with 3 level nodes. I have introduced checkbox in one of the column in the node..

By this I can select the checkbox individually. I have got the requirement to select all the checkboxes simultaneously using a button. I tried several things but no help..

Please help me with this..I have used class 'cl_gui_alv_tree' for designing the Tree.

[Former Member]

Hi,

You need to add a button to the toolbar manually, when the button is pressed loop at all the nodes that have a checkbox and update the checkbox field.

Something like....

data:  go_tree1     type ref to cl_gui_alv_tree,
       go_toolbar   type ref to cl_gui_toolbar

*-----------------------------------------------------------------------
* Add buttons to the toolbar
*-----------------------------------------------------------------------
  call method go_tree1->get_toolbar_object
    importing
      er_toolbar = go_toolbar.

  check go_toolbar is not initial.

  call method go_toolbar->add_button
    exporting
      fcode     = 'SELALL'
      icon      = icon_select_all
      butn_type = cntb_btype_button
      text      = ''
      quickinfo = 'Select All'.

*-----------------------------------------------------------------------
* Define an event handler 
*-----------------------------------------------------------------------
data: go_receiver  type ref to lcl_event_receiver.

class lcl_event_receiver definition.
  public section.
    methods:
      function_selected for event function_selected of cl_gui_toolbar
              importing fcode.
endclass.

class lcl_event_receiver implementation.
  method function_selected.
    case fcode.
      when 'SELALL'.
        perform select_all.
  endmethod.

*-----------------------------------------------------------------------
* Register the event
*-----------------------------------------------------------------------
  create object go_receiver.
  set handler go_receiver->function_selected for go_toolbar.

form select_all.

  data: lv_field type lvc_fname.

*-----------------------------------------------------------------------
* Update the checkbox on each node of the ALV tree
*-----------------------------------------------------------------------
  lv_field = 'CHECK'.   "Whatever you've called the checkbox

  call method go_tree1->change_item
    exporting
      i_node_key     = node_key   "<-- loop at the nodes and repeat for each one with a checkbox
      i_fieldname    = lv_field
      i_data         = ' '
    exceptions
      node_not_found = 1
      others         = 2.


  call method go_tree1->frontend_update.   "call this onces all updates have been made

endform.

Regards,

Darren

[Former Member]

Hi Darren,

Thansk for the reply and the code for select all checkbox..This code is really getting closer to the solution..

Now I have got the select all toolbar in ALV tree..I have added the code for the form select all as below:

I have captured all the node keys in the g_node_key and looping in it..But if debugged inside the call method, one of the table IS_ITEM_LAYOUT is empty becoz of which checkbox is not checked..

Please assist..

FORM select_all .

DATA: lv_field TYPE lvc_fname.

DATA: ld_nkey TYPE lvc_nkey.

*----

---

• Update the checkbox on each node of the ALV tree

*----

---

lv_field = 'REVIEWED'. "Whatever you've called the checkbox

LOOP AT g_node_key INTO ld_nkey.

CALL METHOD g_alv_tree->change_item

EXPORTING

i_node_key = ld_nkey "<-- loop at the nodes and repeat for each one with a checkbox

i_fieldname = lv_field

i_data = ' '

EXCEPTIONS

node_not_found = 1

OTHERS = 2.

CALL METHOD g_alv_tree->frontend_update. "call this onces all updates have been made

ENDLOOP.

ENDFORM. " SELECT_ALL

[Former Member]

Hi Darren,

The select all checkbox worked well..Thankyou very much...

Now need help on deselect all..I have added the button in the toolbar...added the code but somehow it doesnt work..

[Former Member]

Hi Arif,

I'm glad it was useful.

What part of the deselect isn't working?

Does it call the event when you press the button?

Darren

[Former Member]

Hi Darren,

Yes it calls the event for deselect all..I have changed the chosen to space. However, when debugged, the code goes inside the method 'change_item' and again assigns the chosen as 'X' becoz the internal table 'mt_checked_items' has the check box values saved..

Please tell me if any other method to be used to make it work..

LOOP AT g_node_key INTO ld_nkey.

ls_item_layout-fieldname = 'REVIEWED'.

ls_item_layout-class = cl_gui_column_tree=>item_class_checkbox.

ls_item_layout-editable = ''.

ls_item_layout-alignment = cl_gui_column_tree=>align_center.

ls_item_layout-chosen = ''.

ls_item_layout-u_chosen = ''. " update field

CALL METHOD g_alv_tree->change_item.

EXPORTING

i_node_key = ld_nkey "<-- loop at the nodes and repeat for each one with a checkbox

i_fieldname = lv_field

i_data = ' '

is_item_layout = ls_item_layout

EXCEPTIONS

node_not_found = 1

OTHERS = 2.

CALL METHOD g_alv_tree->frontend_update. "call this onces all updates have been made

ENDLOOP.

[Former Member]

The select All issue was solved...

Thanks Darren

[former_member536879]

Hi arif,

I need your help on this.

Can you please help me

With Regards,

Sumodh.P

[former_member537096]

Hi!

I give same problem that solved included this small code:

CALL METHOD tree1->get_subtree

    EXPORTING

      i_node_key       = node_key

    IMPORTING

      et_subtree_nodes = lt_subnodes.


    LOOP AT lt_subnodes ASSIGNING <subnode>.

      tree1->get_outtab_line( EXPORTING i_node_key = <subnode>

      IMPORTING e_outtab_line = wa_new_outtab

        et_item_layout = lt_item_layout ).

      READ TABLE lt_item_layout INTO wa_item_layout INDEX 1.

      IF sy-subrc = 0.

        MOVE-CORRESPONDING wa_item_layout TO wa_new_item_layout.

        IF checked IS NOT INITIAL.

          wa_new_item_layout-chosen   = checked.

          wa_new_item_layout-u_chosen = abap_true. <== determinate update flag

          APPEND wa_new_item_layout TO lt_new_item_layout.

          tree1->change_node( i_node_key = <subnode>

          it_item_layout = lt_new_item_layout

          i_outtab_line = wa_new_outtab ).

        ELSE.

          wa_new_item_layout-chosen   = checked.

          wa_new_item_layout-u_chosen = abap_true. <== determinate update flag

          APPEND wa_new_item_layout TO lt_new_item_layout.

          tree1->change_node( i_node_key = <subnode>

          it_item_layout = lt_new_item_layout

          i_outtab_line  = wa_new_outtab ).

        ENDIF.

      ENDIF.

      REFRESH lt_new_item_layout.

      REFRESH lt_item_layout.

      CLEAR: wa_new_item_layout, wa_item_layout.

    ENDLOOP.