◆◆0[REUSE_ALV_GRID_DISPLAY_LVC]-显示单选按钮(radio button)
下面介绍调用REUSE_ALV_GRID_DISPLAY_LVC创建ALV时，如何显示单选按钮(radio button)，以及对应的单选按钮选择相应。
简单逻辑：
1，radio button的ICON： '@TB@' (选中)和 '@SR@' (未选中)
2，注册 事件lcl_event_receiver=>hotspot_click对应的method，用来处理单击radio button时的图标变更。
完整例子代码：
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REPORT ztest_alv_radiobutton.
TYPE-POOLS:abap, slis.
DATA: BEGIN OF gt_list OCCURS 0,
sel TYPE char4,
val TYPE i,
END OF gt_list.
DATA: go_alv_grid TYPE REF TO cl_gui_alv_grid.
*&---------------------------------------------------------------------*
*& CLASS LCL_EVENT_RECEIVER DEFINITION
*&---------------------------------------------------------------------*
CLASS lcl_event_receiver DEFINITION.
PUBLIC SECTION.
CLASS-METHODS:
* hotspot事件
hotspot_click
FOR EVENT hotspot_click OF cl_gui_alv_grid
IMPORTING e_row_id
e_column_id
es_row_no.
ENDCLASS. "LCL_EVENT_RECEIVER DEFINITION
*&---------------------------------------------------------------------*
*& CLASS LCL_EVENT_RECEIVER DEFINITION
*&---------------------------------------------------------------------*
CLASS lcl_event_receiver IMPLEMENTATION.
METHOD hotspot_click.
DATA: ls_list LIKE gt_list.
CLEAR ls_list.
READ TABLE gt_list INTO ls_list INDEX e_row_id.
IF gt_list-sel NE '@TB@'.
ls_list-sel = '@SR@'."radio button选中的图标
MODIFY gt_list FROM ls_list TRANSPORTING sel WHERE sel NE '@SR@'.
ls_list-sel = '@TB@'."没有选中radio button的图标
MODIFY gt_list FROM ls_list INDEX e_row_id TRANSPORTING sel .
ENDIF.
PERFORM frm_ref_alv.
ENDMETHOD. "HANDLE_ONF4
ENDCLASS. "LCL_EVENT_RECEIVER IMPLEMENTATION
*&---------------------------------------------------------------------*
*& START-OF-SELECTION
*&---------------------------------------------------------------------*
START-OF-SELECTION.
PERFORM frm_get_data.
PERFORM frm_dsp_data.
*&---------------------------------------------------------------------*
*& Form FRM_GET_DATA
*&---------------------------------------------------------------------*
FORM frm_get_data .
DO 10 TIMES.
IF sy-index = 1.
gt_list-sel = '@TB@'.
ELSE.
gt_list-sel = '@SR@'.
ENDIF.
gt_list-val = sy-index.
APPEND gt_list.
ENDDO.
ENDFORM. " FRM_GET_DATA
*&---------------------------------------------------------------------*
*& Form FRM_DSP_DATA
*&---------------------------------------------------------------------*
FORM frm_dsp_data .
DATA: ls_layo TYPE lvc_s_layo,
lt_fcat TYPE lvc_t_fcat,
ls_fcat TYPE lvc_s_fcat,
lt_event TYPE slis_t_event,
ls_event TYPE slis_alv_event.
ls_layo-zebra = abap_true.
ls_layo-cwidth_opt = abap_true.
ls_fcat-fieldname = 'SEL'.
ls_fcat-hotspot = 'X'.
ls_fcat-scrtext_l =
ls_fcat-scrtext_m =
ls_fcat-scrtext_s = '选择'.
APPEND ls_fcat TO lt_fcat.
CLEAR ls_fcat.
ls_fcat-fieldname = 'VAL'.
ls_fcat-scrtext_l =
ls_fcat-scrtext_m =
ls_fcat-scrtext_s = '值'.
APPEND ls_fcat TO lt_fcat.
CLEAR ls_fcat.
ls_event-name = slis_ev_caller_exit_at_start.
ls_event-form = slis_ev_caller_exit_at_start.
APPEND ls_event TO lt_event.
* 显示alv列表
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY_LVC'
EXPORTING
i_callback_program = sy-repid
is_layout_lvc = ls_layo
it_fieldcat_lvc = lt_fcat
i_save = 'A'
it_events = lt_event
TABLES
t_outtab = gt_list
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.
ENDFORM. " FRM_DSP_DATA
*&---------------------------------------------------------------------*
*& Form CALLER_EXIT
*&---------------------------------------------------------------------*
FORM caller_exit USING u_exit TYPE slis_data_caller_exit.
DATA: ls_f4 TYPE lvc_s_f4,
lt_f4 TYPE lvc_t_f4.
CALL FUNCTION 'GET_GLOBALS_FROM_SLVC_FULLSCR'
IMPORTING
e_grid = go_alv_grid.
* 设置回车事件
CALL METHOD go_alv_grid->register_edit_event
EXPORTING
i_event_id = cl_gui_alv_grid=>mc_evt_enter
EXCEPTIONS
error = 1
OTHERS = 2.
* 设置光标焦点移开被修改单元格后触发事件
CALL METHOD go_alv_grid->register_edit_event
EXPORTING
i_event_id = cl_gui_alv_grid=>mc_evt_modified
EXCEPTIONS
error = 1
OTHERS = 2.
SET HANDLER lcl_event_receiver=>hotspot_click FOR go_alv_grid.
ENDFORM. "CALLER_EXIT
*&---------------------------------------------------------------------*
*& Form FRM_REF_ALV
*&---------------------------------------------------------------------*
FORM frm_ref_alv .
DATA ls_stbl TYPE lvc_s_stbl.
ls_stbl-row = abap_true.
ls_stbl-col = abap_true.
CALL METHOD go_alv_grid->refresh_table_display
EXPORTING
is_stable = ls_stbl.
ENDFORM. " FRM_REF_ALV
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运行结果：
以上。
