SALV Fieldcat设置

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  PRIVATE SECTION.
*Set the various column properties
    METHODS:
      set_columns
        CHANGING
          co_alv TYPE REF TO cl_salv_table.
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*Setting up the Columns
    CALL METHOD me->set_columns
      CHANGING
        co_alv = o_alv.
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  METHOD set_columns.
*Get all the Columns
    DATA: lo_cols TYPE REF TO cl_salv_columns.
    lo_cols = o_alv->get_columns( ).
*set the Column optimization
    lo_cols->set_optimize( 'X' ).
*Process individual columns
    DATA: lo_column TYPE REF TO cl_salv_column.
    DATA: g_color TYPE lvc_s_colo.
*Change the properties of the Columns KUNNR
    TRY.
        lo_column = lo_cols->get_column( 'KUNNR' ). "需要处理的列"
        lo_column->set_long_text( 'Sold-To Party' ).
        lo_column->set_medium_text( 'Sold-To Party' ).
        lo_column->set_short_text( 'Sold-To' ).
        lo_column->set_output_length( 10 ).
        "隐藏设置"
        lo_column->set_visible( cl_salv_column_table=>false ). "隐藏在Layout里"
        lo_column->set_technical( 'X' ).   "完全隐藏"
        "颜色设置"
        g_color-col = '6'.
        g_color-int = '1'.
        g_color-inv = '0'.
        lo_column->set_color( g_color ).
        "数值为空时，不显示0"
        lo_column = lo_columns->get_column( 'BET01' ).
        lo_column->set_zero( ' ' ).
        ...
      CATCH cx_salv_not_found.  "#EC NO_HANDLER"
    ENDTRY.
  ENDMETHOD.                    "SET_COLUMNS
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