In ALV reports how double click event works?

Question

in ALV reports how double click event works? Explain in detail.....

Answer 1

hi,
last lines is used for clicking
*& Report  Z_SWAS_FUNCTIONAL
report  z_swas_functional.
tables: qmel,viqmel,iloa,afko.
-- global data declerations--
data: ok_code like sy-ucomm,
      gt_itab type table of zfunctional,
      t_output type table of zfunctional,
      g_container type scrfname value 'CUSTOM_CONTROL',
      grid1  type ref to cl_gui_alv_grid,
      g_custom_container type ref to cl_gui_custom_container,
      e_row type lvc_s_row,
      e_column type lvc_s_col,
      es_row_no type lvc_s_roid.
*CLASS DECLARATION
class z_functional definition.
public section.
class-methods : handle_double_click
                for event double_click of cl_gui_alv_grid
                     importing e_row  e_column.
endclass.
*CLASS IMPLEMENTATION
class z_functional implementation.
method handle_double_click.
       perform handle_double_click using e_row e_column es_row_no.
endmethod.
endclass.
*CODE FOR SELECTION SCREEN
selection-screen begin of block 84433  with frame title text-t01.
parameters : n_number like viqmel-qmnum,
                n_type like qmel-qmart,
                f_loca like iloa-tplnr,
                name like qmel-qmnam.
selection-screen end of block 84433.
                    screen validation event                          *
at selection-screen on n_number.
  select single *
    from viqmel
      where qmnum eq n_number.
if sy-subrc ne 0.
  MESSAGE 'NOTIFICATION NUMBER DOESNOT EXIST' TYPE 'E'.
endif.
select qmart from qmel into qmel where qmart eq N_TYPE.
endselect.
if sy-subrc ne 0.
  MESSAGE 'NOTIFICATION TYPE DOES NOT EXIST' TYPE 'E'.
endif.
*START OF SELECTION EVENT
start-of-selection.
    perform fetchdata.
end-of-selection.
*Call screen event
call screen 100.
*PERFORM DISPLAY.
*&      Form  FETCHDATA
      text
-->  p1        text
<--  p2        text
form fetchdata .
*SELECT VIQMEL~QMNUM VIQMEL~QMTXT VIQMEL~QMDAT VIQMEL~LTRMN VIQMEL~PRIOK
      VIQMELBEZDT VIQMELAUFNR VIQMELTPLNR AFKOGLTRP into corresponding fields of table GT_ITAB
         FROM VIQMEL INNER JOIN AFKO ON VIQMELAUFNR = AFKOAUFNR
               WHERE VIQMELQMNUM IN N_NUMBER and VIQMELQMART IN N_TYPE AND VIQMEL~QMNAM IN NAME.
call function 'ZSWAS_TEST'
  exporting
    qmnum         = n_number
   qmart         = n_type
   tplnr         = f_loca
   qmnam         = name
  tables
    output        = gt_itab
if sy-subrc ne 0.
   message e000(z84433_msg_class).
endif.
endform.                    " FETCHDATA
*&      Module  STATUS_0100  OUTPUT
      text
module status_0100 output.
  set pf-status 'MAIN'.
SET TITLEBAR 'xxx'.
*creating custom container and grid instance
if g_custom_container is initial.
    create object g_custom_container
           exporting container_name = g_container.
    create object grid1
           exporting i_parent = g_custom_container.
    call method grid1->set_table_for_first_display
      exporting
        i_structure_name = 'ZFUNCTIONAL'
      changing
        it_outtab        = gt_itab.
*set handler events
    set handler z_functional=>handle_double_click for grid1.
  endif.
endmodule.                 " STATUS_0100  OUTPUT
*&      Module  USER_COMMAND_0100  INPUT
      text
module user_command_0100 input.
case ok_code.
   when 'EXIT'.
    perform exit_program.
endcase.
  clear ok_code.
endmodule.                 " USER_COMMAND_0100  INPUT
*&      Form  EXIT_PROGRAM
      text
-->  p1        text
<--  p2        text
form exit_program .
leave program.
endform.                    " EXIT_PROGRAM
*&      Form  handle_double_click
      text
     -->P_E_ROW  text
     -->P_E_COLUMN  text
     -->P_ES_ROW_NO  text
form handle_double_click  using   e_row type lvc_s_row
                                  e_column type lvc_s_col
                                  es_row_no type lvc_s_roid.
data: t_output type  zfunctional.
    read table gt_itab into t_output index e_row-index .
  if sy-subrc = 0 and e_column-fieldname eq 'QMNUM'.
    set parameter id 'K01' field t_output-qmnum.
    call transaction 'ZSMART' and skip first screen .
  endif.
endform.                    " handle_double_click
regards,
swaroop.