ABAP - SALV教程11 红黄绿灯

SALV通过某列设置成异常列，SALV就会根据某列的值自动映射成红黄绿灯
注意事项
该列的类型为CHAR1,即是结构的字段类型为CHAR1
该字段的值赋值为 (space,1,2,3) space：灰灯、1：红灯、2：黄灯、3：绿灯
案例代码
复制代码
CLASS lcl_model DEFINITION.
  PUBLIC SECTION.
    TYPES:BEGIN OF TY_dATA,
            status TYPE char1,
            vbeln  TYPE vbak-vbeln,
            erdat  TYPE erdat,
            erzet  TYPE erzet,
            ernam  TYPE ernam,
            auart  TYPE auart.
    TYPES:END  OF ty_data.

    DATA mt_data TYPE TABLE OF ty_data.

    DATA mo_salv TYPE REF TO cl_salv_table.

    "获取数据的方法
    METHODS get_data.
    "展示SALV的方法
    METHODS alv_show.

  PRIVATE SECTION.
    METHODS:
      set_status CHANGING co_alv TYPE REF TO cl_salv_table.
    METHODS:
      set_icon CHANGING co_alv TYPE REF TO cl_salv_table.

ENDCLASS.

CLASS lcl_model IMPLEMENTATION.
  METHOD get_data.
    SELECT vbeln erdat erzet ernam auart
      INTO CORRESPONDING FIELDS OF TABLE mt_data
      FROM vbak
      UP TO 20 ROWS.

    LOOP AT mt_data ASSIGNING FIELD-SYMBOL(<fs_data>).
      IF sy-tabix MOD 3 = 1.
        <fs_data>-status = '1'.
      ELSEIF sy-tabix MOD 3 = 2.
        <fs_data>-status = '2'.
      ELSEIF sy-tabix MOD 3 = 0.
        <fs_data>-status = '3'.
      ENDIF.

      AT LAST.
        <fs_data>-status = ''.
      ENDAT.
    ENDLOOP.
  ENDMETHOD.

  METHOD alv_show.
    DATA: lx_msg TYPE REF TO cx_salv_msg.
    TRY.
        cl_salv_table=>factory(
          IMPORTING
            r_salv_table = mo_salv
          CHANGING
            t_table      = mt_data ).
      CATCH cx_salv_msg INTO lx_msg.
    ENDTRY.
    me->set_status( CHANGING co_alv = mo_salv ).
    me->set_icon( CHANGING co_alv = mo_salv ).
    mo_salv->display( ).
  ENDMETHOD.

  METHOD set_status.
    DATA(lo_functions) = co_alv->get_functions( ).
    "cl_salv_functions_list类型的实例对象的添加状态方法
    lo_functions->set_all( abap_true ).
    "lo_functions->set_default( abap_true ).
  ENDMETHOD.

  METHOD set_icon.
    " 声明接收全体列对象的变量
    DATA: lo_columns TYPE REF TO cl_salv_columns.
    DATA: lo_columns_table TYPE REF TO cl_salv_columns_table.
    " 声明接收单个列对象的变量
    DATA: lo_column TYPE REF TO cl_salv_column.
    DATA: lo_column_table  TYPE REF TO cl_salv_column_table.

    " 声明型号灯映射变量
    DATA: ls_ddic TYPE salv_s_ddic_reference.

    " 获取全部列的对象
    lo_columns = co_alv->get_columns( ).

    " 设置自动优化列宽度
    lo_columns->set_optimize( 'X' ).

    "红黄绿灯的固定传值
    ls_ddic-field = 'FIELD'.
    ls_ddic-table = 'SALV_S_DDIC_REFERENCE'.

    TRY.
        " 获取全部列的对象
        lo_columns_table = co_alv->get_columns( ).

        " 修改该列为异常列
        lo_columns_table->set_exception_column( 'STATUS' ).

        lo_column_table ?= lo_columns_table->get_column('STATUS').

        lo_column_table->set_ddic_reference( ls_ddic ).

        "修改该列描述
        lo_column_table->set_short_text( '状态' ).
        lo_column_table->set_medium_text( '状态' ).
        lo_column_table->set_long_text( '状态' ).

      CATCH cx_salv_not_found.
    ENDTRY.

    DATA: lo_functional_settings TYPE REF TO cl_salv_functional_settings.
    DATA: lo_tooltips TYPE REF TO cl_salv_tooltips.
    lo_functional_settings = co_alv->get_functional_settings( ).
    lo_tooltips = lo_functional_settings->get_tooltips( ).

    "单元格显示类型：异常灯、图标、符号。即这里针对的是类型为 异常列 所有的单元格
    "这里做鼠标悬停在字段是的简要说明
    lo_tooltips->add_tooltip(
      type = cl_salv_tooltip=>c_type_exception
      value = space
      tooltip = 'Undefined').

    lo_tooltips->add_tooltip(
      type = cl_salv_tooltip=>c_type_exception
      value = '1'
      tooltip = '未拣配').

    lo_tooltips->add_tooltip(
      type = cl_salv_tooltip=>c_type_exception
      value = '2'
      tooltip = '未完全拣配').

    lo_tooltips->add_tooltip(
      type = cl_salv_tooltip=>c_type_exception
      value = '3'
      tooltip = '已完全拣配').
  ENDMETHOD.

ENDCLASS.

START-OF-SELECTION.
  DATA(lo_model) = NEW lcl_model( ).
  lo_model->get_data( ).
  lo_model->alv_show( ).