排序在ALV中也是一个比较重要的功能，在有合计(参照-->SALV教程11-Aggregations应用-合计(total)、小计(subtotal)、平均值(average))的场合下，排序能实现排序字段的小计(subtotal).
具体实现方法：
1，通过get_sorts方法得到类CL_SALV_SORTS的引用，
2，通过add_sort方法添加排序的字段，如果还要小计，输入参数subtotal就要传入’X‘
完整代码
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*&---------------------------------------------------------------------*
*& 一个简单的通过类CL_SALV_TABLE生成SALV的例子
*&---------------------------------------------------------------------*
REPORT z_salv_12.
*
*----------------------------------------------------------------------*
* 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,
posnr TYPE vbap-posnr,
erdat TYPE erdat,
auart TYPE auart,
kunnr TYPE kunnr,
netwr TYPE netwr,
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_aggregations CHANGING co_alv TYPE REF TO cl_salv_table.
METHODS:
set_sorts 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 vbak~vbeln
vbap~posnr
vbak~erdat
vbak~auart
vbak~kunnr
vbap~netwr
INTO TABLE t_vbak
FROM vbak
INNER JOIN vbap ON vbap~vbeln = vbak~vbeln
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.
* 排序
CALL METHOD set_sorts
CHANGING
co_alv = o_alv.
* 调用合计的设置方法
CALL METHOD set_aggregations
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.
* 排序方法实现
METHOD set_sorts.
*
DATA: lo_sort TYPE REF TO cl_salv_sorts.
*
* get Sort object
lo_sort = co_alv->get_sorts( ).
*
* 对销售订单号进行排序，由于有总计，所以每个销售订单也会有小计
TRY.
CALL METHOD lo_sort->add_sort
EXPORTING
columnname = ‘VBELN‘
subtotal = if_salv_c_bool_sap=>true.
CATCH cx_salv_not_found . "#EC NO_HANDLER
CATCH cx_salv_existing . "#EC NO_HANDLER
CATCH cx_salv_data_error . "#EC NO_HANDLER
ENDTRY.
*
ENDMETHOD. "set_sorts
* 合计方法的实现
METHOD set_aggregations.
*
DATA: lo_aggrs TYPE REF TO cl_salv_aggregations.
*
lo_aggrs = co_alv->get_aggregations( ).
*
* 给NETWR添加列
TRY.
CALL METHOD lo_aggrs->add_aggregation
EXPORTING
columnname = ‘NETWR‘
aggregation = if_salv_c_aggregation=>total.
CATCH cx_salv_data_error . "#EC NO_HANDLER
CATCH cx_salv_not_found . "#EC NO_HANDLER
CATCH cx_salv_existing . "#EC NO_HANDLER
ENDTRY.
*
* 将合计放置到SALV的顶端
lo_aggrs->set_aggregation_before_items( ).
*
ENDMETHOD. "set_aggregations
*$*$*.....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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运行，按销售订单号升序排序，并且每个订单有小计，
以上。
原文：https://www.cnblogs.com/lvdong18847870057/p/12546998.html