An SAP Consultant: TOP OF LIST in ALV

Create Web Dynpro Component with Window and View(Automatically View is embedded into Window).

Define Component Use ALV for the Used component SALV_WD_TABLE under Used Components tab of Web Dynpro Component.

Go to Component Controller COMPONENTCONTROLLER

Properties tab->Define or Include Used Controllers/ Components of ALV.

Context tab->Create PA0002 node with cardinality 0..n.

Context tab->Create TOP_OF_LIST node with attribute CONTENT (type ref to CL_SALV_FORM_ELEMENT)

Context tab-> Map node TOP_OF_LIST of ALV Component context to TOP_OF_LIST of Component Controller.

Methods tab->Write the code in WDDOINIT to populate data in ALV and creating TOP_OF_LIST.

WDDOINIT method code

METHOD wddoinit .

  wd_this->get_pa0002_data(  ).
  wd_this->create_top_of_list(  ).

ENDMETHOD.

GET_PA0002_DATA code

METHOD get_pa0002_data .
  DATA lo_nd_pa0002 TYPE REF TO if_wd_context_node.
  DATA lt_pa0002 TYPE wd_this->elements_pa0002.

  "Navigate from <context> to <pa0002> via lead selection
  lo_nd_pa0002 = wd_context->get_child_node( name = wd_this->wdctx_pa0002 ).
  SELECT *
    FROM pa0002
    INTO CORRESPONDING FIELDS OF TABLE lt_pa0002
    UP TO 20 ROWS.
  lo_nd_pa0002->bind_table( new_items = lt_pa0002 set_initial_elements = abap_true ).

ENDMETHOD.

CREATE_TOP_OF_LIST code

METHOD create_top_of_list.
  DATA lo_nd_top_of_list TYPE REF TO if_wd_context_node.
  DATA lo_el_top_of_list TYPE REF TO if_wd_context_element.
  DATA ls_top_of_list    TYPE wd_this->element_top_of_list.
  DATA:lr_grid           TYPE REF TO cl_salv_form_layout_grid.
* TOP-OF-LIST
**...create top grid
  CREATE OBJECT lr_grid
    EXPORTING
      columns = 5.

*... fill 1. row
  lr_grid->create_text(
    EXPORTING
      row = 1
      column = 1
      rowspan = 1
      colspan = 1
      text = 'Cell 1,1' ).

  lr_grid->create_text(
    EXPORTING
      row = 1
      column = 2
      rowspan = 1
      colspan = 1
      text = 'Cell 1,2' ).

  lr_grid->create_text(
    EXPORTING
      row = 1
      column = 3
      rowspan = 1
      colspan = 1
      text = 'Cell 1,3' ).

  lr_grid->create_text(
  EXPORTING
    row = 1
    column = 4
    rowspan = 1
    colspan = 1
    text = 'Cell 1,4' ).

  lr_grid->create_text(
EXPORTING
  row = 1
  column = 5
  rowspan = 1
  colspan = 1
  text = 'Cell 1,5' ).
*...fill 2nd row
  lr_grid->create_text(
    EXPORTING
      row = 2
      column = 1
      rowspan = 1
      colspan = 1
      text = 'Cell 2,1' ).

  lr_grid->create_text(
    EXPORTING
      row = 2
      column = 2
      rowspan = 1
      colspan = 1
      text = 'Cell 2,2' ).

  lr_grid->create_text(
    EXPORTING
      row = 2
      column = 3
      rowspan = 1
      colspan = 1
      text = 'Cell 2,3' ).

  lr_grid->create_text(
  EXPORTING
    row = 2
    column = 4
    rowspan = 1
    colspan = 1
    text = 'Cell 2,4' ).

  lr_grid->create_text(
EXPORTING
  row = 2
  column = 5
  rowspan = 1
  colspan = 1
  text = 'Cell 2,5' ).
  "Navigate from <context> to <top_of_list> via lead selection
  lo_nd_top_of_list = wd_context->get_child_node( name = wd_this->wdctx_top_of_list ).

  "pass TOL to context node
  lo_nd_top_of_list = wd_context->get_child_node( name = 'TOP_OF_LIST' ).
  lo_el_top_of_list = lo_nd_top_of_list->get_element( index = 1 ).

  CALL METHOD lo_el_top_of_list->set_attribute
    EXPORTING
      value = lr_grid
      name  = 'CONTENT'.

ENDMETHOD.