本文基于SALV教程7-列属性设定-修改列标签名(label)，自动优化显示宽度。

列隐藏的具体方法如下：

1，取得单个列的类引用CL_SALV_COLUMN

2，调用类CL_SALV_COLUMN中的方法SET_VISIBLE()来决定列是否隐藏字段

代码:

 

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*&---------------------------------------------------------------------* *& 一个简单的通过类CL_SALV_TABLE生成SALV的例子 *&---------------------------------------------------------------------* REPORT z_salv_6. * *----------------------------------------------------------------------* *       CLASS lcl_report DEFINITION *----------------------------------------------------------------------* CLASS lcl_report DEFINITION. *   PUBLIC SECTION. * *   定义SALV输出内表     TYPES: BEGIN OF ty_vbak,              vbeln TYPE vbak-vbeln,              erdat TYPE erdat,              auart TYPE auart,              kunnr TYPE kunnr,            END OF ty_vbak. *     DATA: t_vbak TYPE STANDARD TABLE OF ty_vbak. * *   ALV reference     DATA: o_alv TYPE REF TO cl_salv_table. *     METHODS: *     抽取数据       get_data, * *     生成输出内容       generate_output. * *$*$*.....CODE_ADD_1 - Begin..................................1..*$*$* * * 定义private method来设定SALV不同特性   PRIVATE SECTION.     METHODS:       set_pf_status CHANGING co_alv TYPE REF TO cl_salv_table.       METHODS:       set_columns CHANGING co_alv TYPE REF TO cl_salv_table. *$*$*.....CODE_ADD_1 - End....................................1..*$*$*   ENDCLASS.                    "lcl_report DEFINITION   *----------------------------------------------------------------------* *       CLASS lcl_report IMPLEMENTATION *----------------------------------------------------------------------* * 类实现 CLASS lcl_report IMPLEMENTATION. *   METHOD get_data. *   抽取数据     SELECT vbeln            erdat            auart            kunnr       INTO TABLE t_vbak       FROM vbak            UP TO 20 ROWS. *   ENDMETHOD.                    "get_data   *.......................................................................   METHOD generate_output. *   New ALV instance *   We are calling the static Factory method which will give back *   the ALV object reference. * * exception class     DATA: lx_msg TYPE REF TO cx_salv_msg.     TRY.         cl_salv_table=>factory(           IMPORTING             r_salv_table = o_alv           CHANGING             t_table      = t_vbak ).       CATCH cx_salv_msg INTO lx_msg.     ENDTRY. * *$*$*.....CODE_ADD_2 - Begin..................................2..*$*$* * *    In this area we will call the methods which will set the *      different properties to the ALV *   调用status设置方法     CALL METHOD set_pf_status       CHANGING         co_alv = o_alv.   *   调用设置列的方法     CALL METHOD me->set_columns       CHANGING         co_alv = o_alv.   *$*$*.....CODE_ADD_2 - End....................................2..*$*$* * * *   调用Display方法将数据输出到屏幕上     o_alv->display( ). *   ENDMETHOD.                    "generate_output * *$*$*.....CODE_ADD_3 - Begin..................................3..*$*$* * *    In this area we will implement the methods which are defined in *      the class definition * status设置方法实现   METHOD set_pf_status.       DATA: lo_functions TYPE REF TO cl_salv_functions_list. *   设置默认的标准状态栏     lo_functions = co_alv->get_functions( ).     lo_functions->set_default( abap_true ).     ENDMETHOD.   METHOD set_columns. *       DATA: lo_cols TYPE REF TO cl_salv_columns. *...Process individual columns     DATA: lo_column TYPE REF TO cl_salv_column.   *...取得全部列的对象     lo_cols = o_alv->get_columns( ). * *   设置自动优化列宽度     lo_cols->set_optimize( 'X' ). * *   修改列KUNNR的标签名字和输出长度     TRY. *       取得单个列的对象         lo_column = lo_cols->get_column( 'KUNNR' ).         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( 15 ). *       隐藏列         lo_column->set_visible( value = if_salv_c_bool_sap=>false ).       CATCH cx_salv_not_found.                          "#EC NO_HANDLER     ENDTRY. *     ENDMETHOD.                    "SET_COLUMNS *$*$*.....CODE_ADD_3 - End....................................3..*$*$* * ENDCLASS.                    "lcl_report IMPLEMENTATION   START-OF-SELECTION.     DATA: lo_report TYPE REF TO lcl_report.     CREATE OBJECT lo_report. * 抽取数据   lo_report->get_data( ). * 生成SALV   lo_report->generate_output( ).

运行，KUNNR列被隐藏了。

隐藏列还可以通过调用cl_salv_column_list->set_technical( if_salv_c_bool_sap=>true )。

代码，隐藏RCLNT字段

          ABAP  

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DATA: lo_columns TYPE REF TO cl_salv_columns_table,           lo_column  TYPE REF TO cl_salv_column_list,           lt_cols    TYPE        salv_t_column_ref,           ls_cols    LIKE LINE OF lt_cols.         lo_columns = o_salv->get_columns( ).     lt_cols    = lo_columns->get( ).     TRY.         lo_column ?= lo_columns->get_column( 'RCLNT' ).         lo_column->set_technical( if_salv_c_bool_sap=>true ).       CATCH cx_salv_not_found.                          "#EC NO_HANDLER     ENDTRY.

以上。