本教程介绍如何修改列的相关属性,包括列宽度,列的名字,删除列,列显示的位置,列字段参照的DDDIC对象等。
- 设定全体列的属性
具体方法如下:
1,取得全体列的类引用 CL_SALV_COLUMNS
2,调用类 CL_SALV_COLUMNS中的方法set_optimize,设定自动优化列宽度
类 CL_SALV_COLUMNS中还有其他方法,可参照SE24,如下
- 设定单个列属性的方法如下:
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_long_text()设定字段标签名字,set_output_length()设定列显示长度。注意,当使用set_optimize时,set_output_length方法无效。
类 CL_SALV_COLUMN中还有其他方法,可参照SE24,如下
新的UML流程图如下,在SALV教程1-创建简单SALV的代码基础上添加了方法set_columns(),
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_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 ). 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( ). |
运行显示如下:
以上。
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