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SALV教程10-列属性设定-隐藏列

石头 9月 20, 2016 ALV 6,875 views 0

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:

*&---------------------------------------------------------------------*
*& 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( ).

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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

    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.