topic Re: ALV class include? in Application Development and Automation Discussions

ALV class include?

Former Member — Tue, 25 Jan 2005 14:23:45 GMT

I wrote alv program as below.

i dont know where to put this below CLASS in dynpro

module. either PBO or PAI.

when i keep this in ordinary report it works fine.

but when i use in dynpro screen its not working.

could you pls suggest.

CLASS lcl_event_receiver DEFINITION DEFERRED.

DATA:

go_grid TYPE REF TO cl_gui_alv_grid,

go_custom_container TYPE REF TO cl_gui_custom_container,

o_event_receiver TYPE REF TO lcl_event_receiver.

CLASS lcl_event_receiver DEFINITION.

PUBLIC SECTION.

METHODS:

handle_toolbar FOR EVENT toolbar OF cl_gui_alv_grid

IMPORTING

e_object e_interactive,

handle_user_command FOR EVENT user_command OF cl_gui_alv_grid

IMPORTING e_ucomm.

ENDCLASS.

----

CLASS lcl_event_receiver IMPLEMENTATION

----

CLASS lcl_event_receiver IMPLEMENTATION.

METHOD handle_toolbar.

Event handler method for event toolbar.

CONSTANTS:

Constants for button type

c_button_normal TYPE i VALUE 0,

c_menu_and_default_button TYPE i VALUE 1,

c_menu TYPE i VALUE 2,

c_separator TYPE i VALUE 3,

c_radio_button TYPE i VALUE 4,

c_checkbox TYPE i VALUE 5,

c_menu_entry TYPE i VALUE 6.

DATA:

ls_toolbar TYPE stb_button.

Append seperator to the normal toolbar

CLEAR ls_toolbar.

MOVE c_separator TO ls_toolbar-butn_type..

APPEND ls_toolbar TO e_object->mt_toolbar.

Append a new button that to the toolbar. Use E_OBJECT of
event toolbar. E_OBJECT is of type CL_ALV_EVENT_TOOLBAR_SET.
This class has one attribute MT_TOOLBAR which is of table type
TTB_BUTTON. The structure is STB_BUTTON

CLEAR ls_toolbar.

MOVE 'REFRESH' TO ls_toolbar-function.

MOVE icon_REFRESH TO ls_toolbar-icon.

MOVE 'Change flight' TO ls_toolbar-quickinfo.

MOVE 'Refresh' TO ls_toolbar-text.

MOVE ' ' TO ls_toolbar-disabled.

APPEND ls_toolbar TO e_object->mt_toolbar.

ENDMETHOD.

METHOD handle_user_command.

Handle own functions defined in the toolbar

CASE e_ucomm.

WHEN 'REFRESH'.

Read data from table SFLIGHT

SELECT * FROM sflight INTO TABLE gi_sflight.

CALL METHOD go_grid->refresh_table_display.

CALL METHOD cl_gui_cfw=>flush.

LEAVE TO SCREEN 0.

ENDCASE.

ENDMETHOD.

ENDCLASS.

&----

*& Module STATUS_0300 OUTPUT

&----

text

----

MODULE STATUS_0300 OUTPUT.

Create objects

IF go_custom_container IS INITIAL.

CREATE OBJECT go_custom_container

EXPORTING container_name = 'ZCUSTOM'.

CREATE OBJECT go_grid

EXPORTING

i_parent = go_custom_container.

CREATE OBJECT o_event_receiver.

SET HANDLER o_event_receiver->handle_user_command FOR go_grid.

SET HANDLER o_event_receiver->handle_toolbar FOR go_grid.

Perform Loaddata.

ENDIF.

ENDMODULE. " STATUS_0300 OUTPUT

FORM Loaddata.

Read data from table SFLIGHT

SELECT * FROM sflight INTO TABLE gi_sflight.

Load data into the grid and display them

CALL METHOD go_grid->set_table_for_first_display

EXPORTING i_structure_name = 'SFLIGHT'

CHANGING it_outtab = gi_sflight.

CALL METHOD go_grid->set_toolbar_interactive.

ENDFORM.

Re: ALV class include?

Former Member — Tue, 25 Jan 2005 14:35:22 GMT

Hi,

I would recommend to put this in a seperate include with name <program_name>_lcl and insert a include statement next to your include <program_name>_top.

regards

Siggi

Re: ALV class include?

Former Member — Tue, 25 Jan 2005 15:06:16 GMT

Hi Ambi,

Or just add the CLASS in the main program as it's only small.

Regards,

John.

Re: ALV class include?

RichHeilman — Tue, 25 Jan 2005 20:18:22 GMT

I agree, I usually put the event receiver class in the main program if its a report program, or if it is a modual pool program, I create a separate include for class definitions/implementations.

Regards,

Rich Heilman

Re: ALV class include?

Former Member — Wed, 26 Jan 2005 02:15:14 GMT

hey

i have put the classes in data declaration include file at top. Here my problem is.

when i click push button from screen. I get ALV grid displaying next screen with my respective query values. Next i clicked Refresh button newly created in toolbar of ALVgrid. it works fine.(using refresh grid method.)

but when i get back from the grid screen and start from first screen by clicking

push button, the ALV grid displays with same values at when i clicked the refresh button.

i debugged each time i get stored internal table with new values but not updated

to alv grid why?

does the below ALV function works for only first display time?

CALL METHOD GRID_REPORT->SET_TABLE_FOR_FIRST_DISPLAY.

ambichan.

Re: ALV class include?

Former Member — Wed, 26 Jan 2005 04:09:24 GMT

Are you sure, you are putting new values in the internal table ? Last time I checked your code, both had the same line:

Select * from sflight into table gt_flight.

The above code was before you call the method <b>set_table_for_first_display</b> and <b>refresh_table_display</b>.

Also check whether your event is getting triggered. Put a breakpoint in your event method.

Let us know how it turned out.

Regards,

Subramanian V.

Re: ALV class include?

Former Member — Wed, 26 Jan 2005 04:26:32 GMT

am sorry,I have put the real code below.

I commented all Class and event methods.

i am passing date from before screen to this grid screen by name IMPODAY.

when first time i select date and pass to query,query works out and displaying well.

when i get back to original screen and again select different date

its giving previous display itself.(not getting new query output.)

i debugged the program till the select query internal table its working fine

even in internal table i am holding the values but its not displaying

in GRID. I am wondering why.

MODULE REPORTSTATUS_PBO200 OUTPUT.

CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'

EXPORTING

I_STRUCTURE_NAME = 'ZMW0001'

CHANGING

CT_FIELDCAT = FIELDCATALOG_TMP

EXCEPTIONS

INCONSISTENT_INTERFACE = 1

PROGRAM_ERROR = 2

OTHERS = 3.

IF SY-SUBRC <> 0.

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

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

ENDIF.

PERFORM FIELDCATALOG_OPP.

CREATE OBJECT G_CUSTOM_CONTAINER

EXPORTING CONTAINER_NAME = G_CONTAINER.

CREATE OBJECT GRID_REPORT

EXPORTING I_PARENT = G_CUSTOM_CONTAINER.

PERFORM PREPARE_LAYOUT.

PERFORM HIDE_TOOLBAR.

SELECT * FROM ZMW0001

INTO TABLE SDYN_ITAB WHERE IMPORTDAY = IMPODAY.

SORT SDYN_ITAB BY STATUS.

CALL METHOD GRID_REPORT->SET_TABLE_FOR_FIRST_DISPLAY

EXPORTING

it_toolbar_excluding = lt_toolbar_excluding

is_layout = ps_layout

CHANGING IT_FIELDCATALOG = FIELDCATALOG

IT_OUTTAB = SDYN_ITAB

EXCEPTIONS

invalid_parameter_combination = 1

program_error = 2

too_many_lines = 3

others = 4.

ENDMODULE.

Re: ALV class include?

Former Member — Wed, 26 Jan 2005 04:49:02 GMT

hey

i solved the above problem.

reason is i have to check Object with initial flag and include refresh grid method.

sorry thanks for your assistance.

Re: ALV class include?

Former Member — Wed, 26 Jan 2005 04:51:19 GMT

Just before CALL FUNCTION 'LVC_FIELDCATALOG_MERGE' you need to add an IF:

IF G_CUSTOM_CONTAINER IS INITIAL.

In the ELSE condition you need to do the REFRESH call.

I think you had this in your first code posting.

Not sure what is going on with FIELDCATALOG_TMP and FIELDCATALOG, probably because I cannot see your subroutines.

Re: ALV class include?

Former Member — Wed, 26 Jan 2005 06:08:46 GMT

hai thanks for your reply.

i got your point. one more thing ..is

I added REFRESH Button to ALVgrid at screen 200.

In screen 100 i have 3 push button calling same grid

with different query.

i want to show this refresh button in grid only when Push button2 is clicked.other click of push button 1 and 3 should not be displayed this grid toolbar refresh button.

i dont know how to hide only this refresh button from

this code.

ambichan

Re: ALV class include?

Former Member — Wed, 26 Jan 2005 06:12:45 GMT

this is my part of the code.

CREATE OBJECT o_event_receiver.

SET HANDLER o_event_receiver->handle_user_command FOR GRID_REPORT.

SET HANDLER o_event_receiver->handle_toolbar FOR GRID_REPORT.

CALL METHOD GRID_REPORT->SET_TABLE_FOR_FIRST_DISPLAY

EXPORTING

it_toolbar_excluding = lt_toolbar_excluding

is_layout = ps_layout

CHANGING IT_FIELDCATALOG = FIELDCATALOG

IT_OUTTAB = SDYN_ITAB

EXCEPTIONS

invalid_parameter_combination = 1

program_error = 2

too_many_lines = 3

others = 4.

CALL METHOD GRID_REPORT->set_toolbar_interactive.

how can i give condition here to display refresh button only at timing of click at push button 2.