alv double_click event problem

[Former Member]

hey,experts,i am a newly abaper,i encouterd a problem.blow,it is my code,can u point why i couldnt trigger the alv's double event,thx in advance.

REPORT zexercise_kevin.

DATA: wa_alv_field TYPE slis_fieldcat_alv.

DATA: wa_alv_fieldcat TYPE slis_t_fieldcat_alv.

TYPES: BEGIN OF linetype ,

cityfrom LIKE spfli-cityfrom,

cityto LIKE spfli-cityto,

carrid LIKE spfli-carrid,

connid LIKE spfli-connid,

END OF linetype .

DATA: it_flights TYPE STANDARD TABLE OF linetype,

wa_flights TYPE linetype .

SELECT * UP TO 10 ROWS

FROM spfli INNER JOIN sflight ON

spfli_{carrid = sflight}carrid AND

spfli_{connid = sflight}connid

INTO CORRESPONDING FIELDS OF TABLE IT_FLIGHTS

.

***set column

wa_alv_field-col_pos = 1.

wa_alv_field-fieldname = 'CARRID'.

wa_alv_field-seltext_m = 'CARRID'.

APPEND wa_alv_field TO wa_alv_fieldcat .

wa_alv_field-col_pos = 2.

wa_alv_field-fieldname = 'CONNID'.

wa_alv_field-seltext_m = 'CONNID'.

APPEND wa_alv_field TO wa_alv_fieldcat .

wa_alv_field-col_pos = 3.

wa_alv_field-fieldname = 'CITYFROM'.

wa_alv_field-seltext_m = 'CITYFROM'.

APPEND wa_alv_field TO wa_alv_fieldcat .

wa_alv_field-col_pos = 4.

wa_alv_field-fieldname = 'CITYTO'.

wa_alv_field-seltext_m = 'CITYTO'.

APPEND wa_alv_field TO wa_alv_fieldcat .

*****CALL FUNCTION

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'

EXPORTING

it_fieldcat = wa_alv_fieldcat

• IMPORTING

TABLES

t_outtab = it_flights

• EXCEPTIONS

• PROGRAM_ERROR = 1

• OTHERS = 2

.

IF sy-subrc <> 0.

• MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

• WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

CLASS lcl_event_receiver DEFINITION DEFERRED.

CLASS lcl_event_receiver DEFINITION.

PUBLIC SECTION.

METHODS:

handle_double_click

FOR EVENT DOUBLE_CLICK OF cl_gui_alv_grid

IMPORTING E_ROW E_COLUMN.

ENDCLASS. "lcl_event_receiver DEFINITION

CLASS lcl_event_receiver IMPLEMENTATION.

METHOD handle_double_click.

• DATA: li_linetype LIKE LINE OF it_flights.

• READ TABLE it_flights INDEX e_row-index INTO li_linetype.

WRITE:/ 'ddd'.

MESSAGE e111(ymess).

ENDMETHOD. "handle_double_click

ENDCLASS. "lcl_event_receiver IMPLEMENTATION

[Former Member]

Hi,

You have to call your function like this:

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY' 
EXPORTING 
... 
I_CALLBACK_PROGRAM = z_variant-report 
(or your program name, not sy-repid because this will 
change during the use of ALV Grid) 
I_CALLBACK_USER_COMMAND = 'USER_COMMAND2' 
(or some other name) 
...

then you define your form:

form user_command2 using r_ucomm like sy-ucomm 
rs_selfield type slis_selfield. 
case r_ucomm. 
when '&IC1'. (doubleclick) 
if rs_selfield-tabindex > 0 and 
rs_selfield-sumindex le 0. 
read table itab into wa index 
rs_selfield-tabindex. 
perform second_grid. 
endif. 
endcase.

then your form for the second grid:

form second_grid. 
(here you can make your selections for the second grid 
based on the row you selected into workarea wa from the 
first grid, and then call REUSE_ALV_GRID_DISPLAY again, 
with another field catalog, internal table etc...) 
endform.

REgards,

Nandha

[Former Member]

hey,nandha,why when write down my program name

then with error: filed 'zexercise_kevin'is unkown

my code:

I_CALLBACK_PROGRAM = zexercise_kevin

[Former Member]

thxs, nandha.

i will go through and follow ur code,even still be little bit lost~~