SAP提供了预定义函数F4IF_SHLP_EXIT_EXAMPLE，创建搜索帮助。
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2.复制SAP的预定义函数F4IF_SHLP_EXIT_EXAMPLE创建函数ZFVBELN_FIND_EXIT
参数和预定义函数一致，这里我们调用‘SELECT’这个时间点来进行数据的查询输出，自定义的帮助出口函数中的具体代码如下：
1 FUNCTION zfvbeln_find_exit. 2 *"---------------------------------------------------------------------- 3 *"*"Local interface: 4 *" TABLES 5 *" SHLP_TAB TYPE SHLP_DESCT 6 *" RECORD_TAB STRUCTURE SEAHLPRES 7 *" CHANGING 8 *" VALUE(SHLP) TYPE SHLP_DESCR 9 *" VALUE(CALLCONTROL) LIKE DDSHF4CTRL STRUCTURE DDSHF4CTRL 10 *"---------------------------------------------------------------------- 11 DATA:BEGIN OF lt_tab OCCURS 0, 12 vbeln TYPE vbeln_vl, 13 lfdat TYPE lfdat_v, 14 wbstk TYPE wbstk, 15 END OF lt_tab. 16 17 DATA:r_vbeln TYPE RANGE OF vbeln_vl WITH HEADER LINE, 18 r_lfdat TYPE RANGE OF lfdat_v WITH HEADER LINE, 19 r_wbstk TYPE RANGE OF wbstk WITH HEADER LINE, 20 ddshselops TYPE ddshselopt. 21 IF callcontrol-step = 'SELECT'. 22 LOOP AT shlp-selopt INTO ddshselops. 23 CASE ddshselops-shlpfield. 24 WHEN 'VBELN'. 25 MOVE-CORRESPONDING ddshselops TO r_vbeln. 26 APPEND r_vbeln. 27 WHEN 'LFDAT'. 28 MOVE-CORRESPONDING ddshselops TO r_lfdat. 29 APPEND r_lfdat. 30 WHEN 'WBSTK'. 31 MOVE-CORRESPONDING ddshselops TO r_wbstk. 32 APPEND r_wbstk. 33 ENDCASE. 34 ENDLOOP. 35 36 *根据输入参数查询数据 37 SELECT likp~vbeln likp~lfdat INTO CORRESPONDING FIELDS OF TABLE lt_tab FROM likp 38 INNER JOIN vbuk 39 ON likp~vbeln = vbuk~vbeln 40 WHERE likp~vbeln IN r_vbeln 41 AND likp~lfdat IN r_lfdat 42 AND vbuk~wbstk IN r_wbstk. 43 44 *将查询结果回执到屏幕上来 45 CALL FUNCTION 'F4UT_RESULTS_MAP' 46 * EXPORTING 47 * SOURCE_STRUCTURE = 48 * APPLY_RESTRICTIONS = ' ' 49 TABLES 50 shlp_tab = SHLP_TAB 51 record_tab = RECORD_TAB 52 source_tab = LT_TAB 53 changing 54 shlp = SHLP 55 callcontrol = CALLCONTROL 56 EXCEPTIONS 57 ILLEGAL_STRUCTURE = 1 58 OTHERS = 2 59 . 60 IF sy-subrc <> 0. 61 MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO 62 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4. 63 ENDIF. 64 *下一个时间点直接转到DISP，否则无法再屏幕上显示帮助列表 65 callcontrol-step = 'DISP'. "" 66 67 ENDIF. 68 69 70 71 72 ENDFUNCTION.
激活函数和搜索帮助，允许测试搜索帮助结果如下：
