In diesem Beispiel wird ein ALV-Grid aufgerufen, das jede Sekunde einen anderen Eintrag aus einer Tabelle anzeigt.

Transkript

1 ALV-Grid mit Timer In diesem Beispiel wird ein ALV-Grid aufgerufen, das jede Sekunde einen anderen Eintrag aus einer Tabelle anzeigt. Gelesen wird die komplette Ländertabelle. Im ALV-Grid werden dann nacheinander Timer gesteuert die einzelnen Einträge angezeigt. Varianten Untenstehend zwei Varianten des gleichen Programms. Das erste ist ein Standardprogramm mit Eventhandler für den Timer. Die zweite Variante ist komplett objektorientiert. In dieser Variante fehlen die PAI- und PBO-Module. Bitte aus der ersten Variante kopieren! Programminfos Im Programm muss das Dynpro 500 mit einem Custom Container angelegt werden. Der Container muss CC heissen. Als OK-Code im Dynpro nehmen wir SY-UCOMM. Zusätzlich muss der GUI-Status 500 angelegt werden. Die Funktionen F3, SHIFT-F3 und F12 müssen mit dem Kommando BACK definiert werden. Coding 1 REPORT ZZ_ALV_TIMER_DEMO. CLASS: gc_evt_handler DEFINITION DEFERRED. *** data DATA: gt_t005t TYPE STANDARD TABLE OF t005t, gt_t005tx TYPE STANDARD TABLE OF t005t, gv_index TYPE i, gr_alv_grid TYPE REF TO cl_gui_alv_grid, gr_evt_handler TYPE REF TO gc_evt_handler, gr_timer TYPE REF TO cl_gui_timer, gr_cont TYPE REF TO cl_gui_custom_container. FIELD-SYMBOLS <t005t> TYPE t005t. * CLASS gc_evt_handler DEFINITION CLASS gc_evt_handler DEFINITION FINAL.

2 PUBLIC SECTION. METHODS handle_when_done FOR EVENT finished OF cl_gui_timer. ENDCLASS. gc_evt_handler DEFINITION * CLASS gc_evt_handler IMPLEMENTATION CLASS gc_evt_handler IMPLEMENTATION. METHOD handle_when_done. *** skip to next entry PERFORM get_next. *** refresh grid gr_alv_grid->refresh_table_display( ). *** start time again handle_when_done ENDCLASS. gc_evt_handler IMPLEMENTATION START-OF-SELECTION. *** get all entries from table SELECT * FROM t005t INTO TABLE gt_t005t WHERE spras = sy-langu. *** show first entry of table PERFORM get_next. *** call grid CALL SCREEN *& Form get_next FORM get_next. *** skip to next entry ADD 1 TO gv_index. IF gv_index > LINES( gt_t005t ). gv_index = 1. ENDIF. *** read next entry READ TABLE gt_t005t ASSIGNING <t005t> INDEX gv_index. *** clear ALV-table CLEAR gt_t005tx. *** display next entry APPEND <t005t> TO gt_t005tx.

3 ENDFORM. get_next *& Form create_alv FORM create_alv. CHECK gr_cont IS INITIAL. *** create container CREATE OBJECT gr_cont container_name = CC. *** create grid CREATE OBJECT gr_alv_grid i_parent = gr_cont. *** display grid CALL METHOD gr_alv_grid->set_table_for_first_display i_structure_name = T005T CHANGING it_outtab = gt_t005tx. ENDFORM. create_alv *& Module STATUS_0500 OUTPUT MODULE status_0500 OUTPUT. SET PF-STATUS 500. PERFORM create_alv. PERFORM init_timer. ENDMODULE. STATUS_0500 OUTPUT *& Module USER_COMMAND_0500 INPUT MODULE user_command_0500 INPUT. CASE sy-ucomm. WHEN BACK. SET SCREEN 0. LEAVE SCREEN. ENDCASE. ENDMODULE. USER_COMMAND_0500 INPUT

4 *& FORM init_timer FORM init_timer. CHECK gr_timer IS INITIAL. *** create timer control CREATE OBJECT gr_timer. *** create event handler CREATE OBJECT gr_evt_handler. *** Register event handler SET HANDLER gr_evt_handler->handle_when_done FOR gr_timer. *** Set value according to your requirement gr_timer->interval = 1. *** Start timer ENDFORM. INIT_TIMER Coding 2 Objektorientiert REPORT ZZ_ALV_TIMER_DEMO_OO. CLASS gc_application DEFINITION DEFERRED. DATA gr_application TYPE REF TO gc_application. * CLASS gc_application DEFINITION CLASS gc_application DEFINITION CREATE PUBLIC. PUBLIC SECTION. DATA: gt_t005t TYPE STANDARD TABLE OF t005t, gt_t005tx TYPE STANDARD TABLE OF t005t, gv_index TYPE i, gr_alv_grid TYPE REF TO cl_gui_alv_grid, gr_timer TYPE REF TO cl_gui_timer, gr_cont TYPE REF TO cl_gui_custom_container. METHODS get_next. METHODS constructor. METHODS create_alv. METHODS init_timer. METHODS handle_when_done FOR EVENT finished OF cl_gui_timer. ENDCLASS. gc_application DEFINITION

5 * CLASS gc_application IMPLEMENTATION CLASS gc_application IMPLEMENTATION. METHOD handle_when_done. **** skip to next entry get_next( ). **** refresh grid gr_alv_grid->refresh_table_display( ). **** start timer again handle_when_done METHOD init_timer. CREATE OBJECT gr_timer. *** Register event handler SET HANDLER handle_when_done FOR gr_timer. *** Set value according to your requirement gr_timer->interval = 1. *** Start timer init_timer METHOD get_next. FIELD-SYMBOLS <t005t> TYPE t005t. *** skip to next entry ADD 1 TO gv_index. IF gv_index > LINES( gt_t005t ). gv_index = 1. ENDIF. *** read next entry READ TABLE gt_t005t ASSIGNING <t005t> INDEX gv_index. *** clear ALV-table CLEAR gt_t005tx. *** display next entry APPEND <t005t> TO gt_t005tx. get_next METHOD create_alv. *** create if not bound CHECK gr_cont IS INITIAL.

6 *** create container CREATE OBJECT gr_cont container_name = CC. *** create grid CREATE OBJECT gr_alv_grid i_parent = gr_cont. *** display grid CALL METHOD gr_alv_grid->set_table_for_first_display i_structure_name = T005T CHANGING it_outtab = gt_t005tx. create_alv METHOD constructor. *** get all entries from table SELECT * FROM t005t INTO TABLE gt_t005t WHERE spras = sy-langu. *** show first entry of table get_next( ). *** init timer init_timer( ). ENDCLASS. constructor gc_application IMPLEMENTATION START-OF-SELECTION. *** create application class CREATE OBJECT gr_application. *** call grid CALL SCREEN 0500.