Dropdown in ALV

Dropdown list in ALV grid.

REPORT zalv_dropdowns.
*Type pools declarations for ALV
TYPE-POOLS : slis.
*data declarations for ALV container,ALV grid, Fieldcatalogues & layout
DATA: g_grid TYPE REF TO cl_gui_alv_grid,
g_custom_container TYPE REF TO cl_gui_custom_container,
gt_fieldcat TYPE lvc_t_fcat,
gs_layout TYPE lvc_s_layo.
*INTERNAL TABLE AND WA DECLARATIONS FOR t517 A table
DATA: gt_outtab TYPE STANDARD TABLE OF t517a INITIAL SIZE 0,
wa_outtab TYPE t517a.
*initialisation event
INITIALIZATION.
*Start of selection event
START-OF-SELECTION.
*Call to ALV
CALL SCREEN 600.
*On this statement double click it takes you to the screen painter SE51.
*Create a Custom container and name it CCONT and OK code as OK_CODE.
*Save check and Activate the screen painter.
*Now a normal screen with number 600 is created which holds the ALV grid.
• PBO of the actual screen , Here we can give a title and customized menus
• Here we also call the subroutine for ALV output.
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* MODULE PBO OUTPUT *
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MODULE pbo OUTPUT.
* set pf-status 'xxx'.
* set titlebar 'MAIN100'.
• Subroutine to display the output in alv
PERFORM alv_output.
ENDMODULE. "pbo OUTPUT
• PAI module of the screen created. In case we use an interactive ALV or
*for additional functionalities we can create OK codes and
• based on the user command we can do the coding.
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* MODULE PAI INPUT *
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MODULE pai INPUT.
ENDMODULE. "pai INPUT
&---------------------------------------------------------------------
*& Form BUILD_FIELDCAT
&---------------------------------------------------------------------
FORM build_fieldcat.
DATA ls_fcat TYPE lvc_s_fcat.
*Build the field catalogue
CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
EXPORTING
i_structure_name = 'T517A'
CHANGING
ct_fieldcat = gt_fieldcat.
• To assign dropdown in the fieldcataogue
LOOP AT gt_fieldcat INTO ls_fcat.
CASE ls_fcat-fieldname.
WHEN 'SLART'.
*drdn-hndl = '1' is the first list box
ls_fcat-drdn_hndl = '1'.
ls_fcat-outputlen = 15.
MODIFY gt_fieldcat FROM ls_fcat.
*drdn-hndl = '2' is the second list box
WHEN 'ABART'.
ls_fcat-drdn_hndl = '2'.
ls_fcat-outputlen = 15.
MODIFY gt_fieldcat FROM ls_fcat.
ENDCASE.
ENDLOOP.
ENDFORM. "build_fieldcat
&---------------------------------------------------------------------
*& Form ALV_OUTPUT
&---------------------------------------------------------------------
FORM alv_output .
*Create object for container
CREATE OBJECT g_custom_container
EXPORTING container_name = 'CCONT'.
*create object for grid
CREATE OBJECT g_grid
EXPORTING i_parent = g_custom_container.
• Build fieldcat and set column
*Assign a handle for the dropdown listbox.
PERFORM build_fieldcat.
*Build layout
PERFORM build_layout.
• Define a drop down table.
PERFORM dropdown_table.
*fetch values from the T517A table
SELECT * FROM t517a INTO TABLE gt_outtab.
*Display ALV output
CALL METHOD g_grid->set_table_for_first_display
EXPORTING
is_layout = gs_layout
CHANGING
it_fieldcatalog = gt_fieldcat
it_outtab = gt_outtab.
ENDFORM. "ALV_OUTPUT
&---------------------------------------------------------------------
*& Form dropdown_table
&---------------------------------------------------------------------
* text
----------------------------------------------------------------------
* --> p1 text
* <-- p2 text
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FORM dropdown_table.
*Declarations for drop down lists in ALV.
DATA: lt_dropdown TYPE lvc_t_drop,
ls_dropdown TYPE lvc_s_drop.
• First SLART listbox (handle '1').
ls_dropdown-handle = '1'.
ls_dropdown-value = '01 Primary school'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '1'.
ls_dropdown-value = '02 Lower Secondary'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '1'.
ls_dropdown-value = '03 Upper Secondary'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '1'.
ls_dropdown-value = '04 Professional School'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '1'.
ls_dropdown-value = '05 College'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '1'.
ls_dropdown-value = '06 University'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '1'.
ls_dropdown-value = '09 Other Establishment'.
APPEND ls_dropdown TO lt_dropdown.
• Second ABART listbox (handle '2').
ls_dropdown-handle = '2'.
ls_dropdown-value = '10 Primary School certificate'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '20 Lower secondary/Junior high'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '30 High school diploma(B-levels)'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '31 Vocational'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '32 Matriculation'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '40 Specialist vocational certificate'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '50 College degree Level1'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '51 College degree Level2'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '52 Masters degree'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '60 Univ Degree level1'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '61 Bachelors degree'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '62 Masters degree'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '63 Licenciate'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '64 Doctors Degree Ph.D'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '89 None'.
APPEND ls_dropdown TO lt_dropdown.
ls_dropdown-handle = '2'.
ls_dropdown-value = '90 Unknown'.
APPEND ls_dropdown TO lt_dropdown.
*method to display the dropdown in ALV
CALL METHOD g_grid->set_drop_down_table
EXPORTING
it_drop_down = lt_dropdown.
ENDFORM. " dropdown_table
&---------------------------------------------------------------------
*& Form build_layout
&---------------------------------------------------------------------
* text
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*layout for ALV output
FORM build_layout .
gs_layout-cwidth_opt = 'X'.
gs_layout-grid_title = 'ALV DROPDOWN LISTS'.
gs_layout-no_toolbar = 'X'.
ENDFORM. " build_layout