Logic to check all the checkboxes in the o/p screen

Question

Hi,
In the o/p screen there are about 20 records.Besides each record there is a checkbox.There are 2 pushbuttons on the top of the screen(checkall and uncheckall).When the user clicks on the checkall pushbutton,all the checkboxes should be checked.Similarly when the uncheckall push button is clicked,all the check boxes should be unchecked.Can anyone tell me how to do this?

Answer 1

Hi,
Maybe you try the following:
types: begin of ty_checkboxref,
        ref type ref to checkbox,
        end of ty_checkboxref.
TABLES: sscrfields.
data: gs_checkbox type ty_checkboxref,
        gt_checkbox type table of ty_checkboxref.
parameters: cbox1 as checkbox,
                  cbox2 as checkbox,
                   rbut01 RADIOBUTTON GROUP grp1 USER-COMMAND fcode,
            rbut02 RADIOBUTTON GROUP grp1 ,
            rbut03 RADIOBUTTON GROUP grp1 .
initialization.
get REFERENCE of cbox1 into gs_checkbox-ref.
  append gs_checkbox to gt_checkbox.
  get REFERENCE of cbox2 into gs_checkbox-ref.
  append gs_checkbox to gt_checkbox.
at selection screen.
  IF sscrfields-ucomm = 'FCODE'.
TO CLEAR ALL CHECKBOXES:
loop at gt_checkbox into gs_checkbox.
    gs_checkbox-ref->* = ' '.
    MODIFY gt_checkbox from gs_checkbox.
endloop.
    IF rbut01 = 'X'.
      SPACE FOR ANY FUNCTIONALITY
    ELSEIF rbut02 = 'X'.
      SPACE FOR ANY FUNCTIONALITY
    ELSEIF rbut03 = 'X'.
      SPACE FOR ANY FUNCTIONALITY
    ENDIF.
  ENDIF.
Of course you have to fill the table with the references to the checkboxes once, but than you can loop over the table and handle any amount of checkboxes simultaniously.
Regards,
Dave