自建搜索帮助，并删除重复搜索结果_xiaoyaoshouxiebi-优快云博客

本文链接：https://blog.youkuaiyun.com/hjz419116185/article/details/6577790

1、创建一个搜索帮助ZBISMT，检索MARA表的BISMT字段内容

执行测试可看到现在检索出来的数据有很多重复的

2、复制搜索帮助出口的标准函数F4IF_SHLP_EXIT_EXAMPLE为YF4IF_SHLP_EXIT_ZBISMT，在函数内添加相应代码：

function yf4if_shlp_exit_zbismt.
*"--------------------------------------------------------------------
*"*"本地接口:
*" TABLES
*"      SHLP_TAB TYPE SHLP_DESCT
*"      RECORD_TAB STRUCTURE SEAHLPRES
*" CHANGING
*"     VALUE(SHLP) TYPE SHLP_DESCR
*"     VALUE(CALLCONTROL) LIKE DDSHF4CTRL STRUCTURE DDSHF4CTRL
*"--------------------------------------------------------------------

* EXIT immediately, if you do not want to handle this step
if callcontrol-step <> 'SELONE' and
     callcontrol-step <> 'SELECT' and
     " AND SO ON
     callcontrol-step <> 'DISP'.
    exit.
endif.

*"----------------------------------------------------------------------
* STEP SELONE (Select one of the elementary searchhelps)
*"----------------------------------------------------------------------
* This step is only called for collective searchhelps. It may be used
* to reduce the amount of elementary searchhelps given in SHLP_TAB.
* The compound searchhelp is given in SHLP.
* If you do not change CALLCONTROL-STEP, the next step is the
* dialog, to select one of the elementary searchhelps.
* If you want to skip this dialog, you have to return the selected
* elementary searchhelp in SHLP and to change CALLCONTROL-STEP to
* either to 'PRESEL' or to 'SELECT'.
if callcontrol-step = 'SELONE'.
* PERFORM SELONE .........
exit.
endif.

*"----------------------------------------------------------------------
* STEP PRESEL (Enter selection conditions)
*"----------------------------------------------------------------------
* This step allows you, to influence the selection conditions either
* before they are displayed or in order to skip the dialog completely.
* If you want to skip the dialog, you should change CALLCONTROL-STEP
* to 'SELECT'.
* Normaly only SHLP-SELOPT should be changed in this step.
if callcontrol-step = 'PRESEL'.
*   PERFORM PRESEL ..........
    exit.
endif.
*"----------------------------------------------------------------------
* STEP SELECT    (Select values)
*"----------------------------------------------------------------------
* This step may be used to overtake the data selection completely.
* To skip the standard seletion, you should return 'DISP' as following
* step in CALLCONTROL-STEP.
* Normally RECORD_TAB should be filled after this step.
* Standard function module F4UT_RESULTS_MAP may be very helpfull in this
* step.
if callcontrol-step = 'SELECT'.
*   PERFORM STEP_SELECT TABLES RECORD_TAB SHLP_TAB
*                       CHANGING SHLP CALLCONTROL RC.
*   IF RC = 0.
*     CALLCONTROL-STEP = 'DISP'.
*   ELSE.
*     CALLCONTROL-STEP = 'EXIT'.
*   ENDIF.
    exit. "Don't process STEP DISP additionally in this call.
endif.
*"----------------------------------------------------------------------
* STEP DISP     (Display values)
*"----------------------------------------------------------------------
* This step is called, before the selected data is displayed.
* You can e.g. modify or reduce the data in RECORD_TAB
* according to the users authority.
* If you want to get the standard display dialog afterwards, you
* should not change CALLCONTROL-STEP.
* If you want to overtake the dialog on you own, you must return
* the following values in CALLCONTROL-STEP:
* - "RETURN" if one line was selected. The selected line must be
*   the only record left in RECORD_TAB. The corresponding fields of
*   this line are entered into the screen.
* - "EXIT" if the values request should be aborted
* - "PRESEL" if you want to return to the selection dialog
* Standard function modules F4UT_PARAMETER_VALUE_GET and
* F4UT_PARAMETER_RESULTS_PUT may be very helpfull in this step.
if callcontrol-step = 'DISP'.
*   PERFORM AUTHORITY_CHECK TABLES RECORD_TAB SHLP_TAB
*                           CHANGING SHLP CALLCONTROL.
    sort record_tab.
    delete adjacent duplicates from record_tab comparing all fields.
    exit.
endif.
endfunction.