OO实现ALV TABLE 十一：ALV的聚合，排序，过滤

在ALV提供的标准工具栏上我们可以实现输出结果的聚合（最大值，最小值，汇总，平均数），排序，过滤功能，同样在程序里也可以达到这些功能。

1. 声明聚合，排序，过滤所需要的变量。

DATA: lr_aggregations TYPE REF TO cl_salv_aggregations,

lr_filters TYPE REF TO cl_salv_filters,

lr_sorts type ref to cl_salv_sorts.

2.汇总

lr_aggregations->add_aggregation(

columnname = 'DISTANCE'

aggregation =if_salv_c_aggregation=>total

).

3. 最小值

lr_aggregations->add_aggregation(

columnname = 'FLTIME'

aggregation = if_salv_c_aggregation=>minimum

).

4. 过滤

lr_filters->add_filter(

columnname = 'CITYFROM'

sign = 'I'

option = 'NE'

low = 'ROM'

high = ''

).

5. 排序

lr_sorts->add_sort(

columnname = 'CITYFROM'

sequence =if_salv_c_sort=>sort_down

subtotal = 'X'

obligatory = 'X'

).

下面是效果图

下面是程序的所有代码:

REPORT y_xin_002.

*变量定义

TYPES: BEGIN OF gs_spfli,

mandt TYPE spfli-mandt,

carrid TYPE spfli-carrid,

connid TYPE spfli-connid,

countryfr TYPE spfli-countryfr,

cityfrom TYPE spfli-cityfrom,

airpfrom TYPE spfli-airpfrom,

countryto TYPE spfli-countryto,

cityto TYPE spfli-cityto,

airpto TYPE spfli-airpto,

fltime TYPE spfli-fltime,

deptime TYPE spfli-deptime,

arrtime TYPE spfli-arrtime,

distance TYPE spfli-distance,

distid TYPE spfli-distid,

fltype TYPE spfli-fltype,

period TYPE spfli-period,

END OF gs_spfli.

TYPES ty_spfli TYPE gs_spfli OCCURS 0.

*----------------------------------------------------------------------*

* CLASS lcl_alv DEFINITION

*----------------------------------------------------------------------*

* ALV操作类（定义）

*----------------------------------------------------------------------*

CLASS lcl_alv DEFINITION.

PUBLIC SECTION.

METHODS: getdata "取得要显示的数据

RETURNING value(lt_tab) TYPEty_spfli,

alv_full "全屏Grid列表处理方法

IMPORTING value(lt_tab) TYPEty_spfli.

PRIVATE SECTION.

DATA: gr_table TYPE REF TO cl_salv_table.

ENDCLASS. "lcl_alv DEFINITION

*----------------------------------------------------------------------*

* CLASS lcl_alv IMPLEMENTATION

*----------------------------------------------------------------------*

* ALV操作类（实现）

*----------------------------------------------------------------------*

CLASS lcl_alvIMPLEMENTATION.

*取得要显示的数据

METHOD getdata.

SELECT * INTO CORRESPONDING FIELDS OF TABLElt_tab FROM spfli.

ENDMETHOD. "getdata

*输出全屏网格列表的方法

METHOD alv_full.

DATA: lr_functions TYPE REF TO cl_salv_functions_list,

lr_aggregations TYPE REF TO cl_salv_aggregations,

lr_filters TYPE REF TO cl_salv_filters,

lr_sorts type ref to cl_salv_sorts.

"创建实例

TRY.

cl_salv_table=>factory(

IMPORTING

r_salv_table = gr_table

CHANGING

t_table = lt_tab

).

CATCH cx_salv_msg.

ENDTRY.

"ALV标准功能

lr_functions = gr_table->get_functions().

lr_functions->set_all( 'X' ).

lr_aggregations =gr_table->get_aggregations( ).

lr_filters = gr_table->get_filters( ).

lr_sorts = gr_table->get_sorts( ).

TRY.

"汇总

lr_aggregations->add_aggregation(

columnname = 'DISTANCE'

aggregation =if_salv_c_aggregation=>total

).

"最小值

lr_aggregations->add_aggregation(

columnname = 'FLTIME'

aggregation =if_salv_c_aggregation=>minimum

).

"过滤

lr_filters->add_filter(

columnname = 'CITYFROM'

sign = 'I'

option = 'NE'

low = 'ROM'

high = ''

).

"排序

lr_sorts->add_sort(

columnname = 'CITYFROM'

sequence =if_salv_c_sort=>sort_down

subtotal = 'X'

obligatory = 'X'

).

CATCH cx_salv_data_error.

CATCH cx_salv_existing.

CATCH cx_salv_not_found.

ENDTRY.

"显示列表

gr_table->display( ).

ENDMETHOD. "alv_full

ENDCLASS. "lcl_alvIMPLEMENTATION

*&---------------------------------------------------------------------*

*& Formf_main

*&---------------------------------------------------------------------*

* 整合数据，执行

*----------------------------------------------------------------------*

FORM f_main.

DATA: lt_tab TYPE ty_spfli,

lr_alv TYPE REF TO lcl_alv.

CREATE OBJECT lr_alv.

"取得要显示的数据

lt_tab = lr_alv->getdata( ).

lr_alv->alv_full( lt_tab ).

ENDFORM. "f_main

*执行动作

START-OF-SELECTION.

PERFORM f_main.

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