[ABAP] SALV HEADER, FOOTER 추가하기

*$*$*.....CODE_ADD_1 - Begin..................................1..*$*$*
*
*    In this section we will define the private methods which can
*      be implemented to set the properties of the ALV and can be
*      called in the
*
  PRIVATE SECTION.
*   Default Pf Status
    METHODS:
      set_pf_status
        CHANGING
          co_alv TYPE REF TO cl_salv_table.
*   Set Top of page
    METHODS:
      set_top_of_page
        CHANGING
          co_alv TYPE REF TO cl_salv_table.
*
*   Set End of page
    METHODS:
      set_end_of_page
        CHANGING
          co_alv TYPE REF TO cl_salv_table.
*
*$*$*.....CODE_ADD_1 - End....................................1..*$*$*
*
*$*$*.....CODE_ADD_2 - Begin..................................2..*$*$*
*
*    In this area we will call the methods which will set the
*      different properties to the ALV
*
*   Setting up the default PF status
    CALL METHOD set_pf_status
      CHANGING
        co_alv = o_alv.
*
*   Calling the top of page method
    CALL METHOD me->set_top_of_page
      CHANGING
        co_alv = o_alv.
*
*   Calling the End of Page method
    CALL METHOD me->set_end_of_page
      CHANGING
        co_alv = o_alv.
*
*$*$*.....CODE_ADD_2 - End....................................2..*$*$*
*
*$*$*.....CODE_ADD_3 - Begin..................................3..*$*$*
*
*    In this area we will implement the methods which are defined in
*      the class definition
*
  METHOD set_pf_status.
*
    DATA: lo_functions TYPE REF TO cl_salv_functions_list.
*   Default Functions
    lo_functions = co_alv->get_functions( ).
    lo_functions->set_default( abap_true ).
*
  ENDMETHOD.                    "set_pf_status
*
  METHOD set_top_of_page.
*
    DATA: lo_header  TYPE REF TO cl_salv_form_layout_grid,
          lo_h_label TYPE REF TO cl_salv_form_label,
          lo_h_flow  TYPE REF TO cl_salv_form_layout_flow.
*
*   header object
    CREATE OBJECT lo_header.
*
*   To create a Lable or Flow we have to specify the target
*     row and column number where we need to set up the output
*     text.
*
*   information in Bold
    lo_h_label = lo_header->create_label( row = 1 column = 1 ).
    lo_h_label->set_text( 'Header in Bold' ).
*
*   information in tabular format
    lo_h_flow = lo_header->create_flow( row = 2  column = 1 ).
    lo_h_flow->create_text( text = 'This is text of flow' ).
*
    lo_h_flow = lo_header->create_flow( row = 3  column = 1 ).
    lo_h_flow->create_text( text = 'Number of Records in the output' ).
*
    lo_h_flow = lo_header->create_flow( row = 3  column = 2 ).
    lo_h_flow->create_text( text = 20 ).
*
*   set the top of list using the header for Online.
    co_alv->set_top_of_list( lo_header ).
*
*   set the top of list using the header for Print.
    co_alv->set_top_of_list_print( lo_header ).
*
  ENDMETHOD.                    "set_top_of_page
*
  METHOD set_end_of_page.
*
    DATA: lo_footer  TYPE REF TO cl_salv_form_layout_grid,
          lo_f_label TYPE REF TO cl_salv_form_label,
          lo_f_flow  TYPE REF TO cl_salv_form_layout_flow.
*
*   footer object
    CREATE OBJECT lo_footer.
*
*   information in bold
    lo_f_label = lo_footer->create_label( row = 1 column = 1 ).
    lo_f_label->set_text( 'Footer .. here it goes' ).
*
*   tabular information
    lo_f_flow = lo_footer->create_flow( row = 2  column = 1 ).
    lo_f_flow->create_text( text = 'This is text of flow in footer' ).
*
    lo_f_flow = lo_footer->create_flow( row = 3  column = 1 ).
    lo_f_flow->create_text( text = 'Footer number' ).
*
    lo_f_flow = lo_footer->create_flow( row = 3  column = 2 ).
    lo_f_flow->create_text( text = 1 ).
*
*   Online footer
    co_alv->set_end_of_list( lo_footer ).
*
*   Footer in print
    co_alv->set_end_of_list_print( lo_footer ).
*
  ENDMETHOD.                    "set_end_of_page
*
*$*$*.....CODE_ADD_3 - End....................................3..*$*$*