SM30 给字段添加搜索帮助同时带出描述，手动输入后回车带出描述

输入一级分类 二级分类，敲回车自动带出描述

    CHAIN.FIELD zmmt0013d-zclass2 .FIELD zmmt0013d-zclass2t .MODULE frm_get_cl2t ON CHAIN-REQUEST.ENDCHAIN.CHAIN.FIELD zmmt0013d-zclass1 .FIELD zmmt0013d-zclass1t .MODULE frm_get_cl1t ON CHAIN-REQUEST.ENDCHAIN.

 取出描述代码部分  zmmt0013d-zclass2t：表名-描述字段名

MODULE frm_get_cl2t INPUT.SELECT SINGLE a~kschl                                   "#EC CI_SUBRCFROM swor AS aINNER JOIN klah AS bON a~clint = b~clintWHERE b~class = @zmmt0013d-zclass2AND   a~spras = '1'INTO @zmmt0013d-zclass2t.ENDMODULE.MODULE frm_get_cl1t INPUT.SELECT SINGLE a~kschl                                   "#EC CI_SUBRCFROM swor AS aINNER JOIN klah AS bON a~clint = b~clintWHERE b~class = @zmmt0013d-zclass1AND   a~spras = '1'INTO @zmmt0013d-zclass1t.ENDMODULE.

二级分类搜索帮助，选中后可自动带出描述 

屏幕部分

PROCESS BEFORE OUTPUT.MODULE liste_initialisieren.LOOP AT extract WITH CONTROLtctrl_zmmt0013d CURSOR nextline.MODULE liste_show_liste.ENDLOOP.
*
PROCESS AFTER INPUT.MODULE liste_exit_command AT EXIT-COMMAND.MODULE liste_before_loop.LOOP AT extract.MODULE liste_init_workarea.CHAIN.FIELD zmmt0013d-zclass2 .FIELD zmmt0013d-zclass2t .MODULE frm_get_cl2t ON CHAIN-REQUEST.ENDCHAIN.CHAIN.FIELD zmmt0013d-zclass1 .FIELD zmmt0013d-zclass1t .MODULE frm_get_cl1t ON CHAIN-REQUEST.ENDCHAIN.CHAIN.FIELD zmmt0013d-zcpxh .FIELD zmmt0013d-zclass2 .FIELD zmmt0013d-zclass2t .FIELD zmmt0013d-zclass1 .FIELD zmmt0013d-zclass1t .FIELD zmmt0013d-zvoice .FIELD zmmt0013d-spras .FIELD zmmt0013d-zyysl .MODULE set_update_flag ON CHAIN-REQUEST.ENDCHAIN.FIELD vim_marked MODULE liste_mark_checkbox.CHAIN.FIELD zmmt0013d-zcpxh .MODULE liste_update_liste.ENDCHAIN.ENDLOOP.MODULE liste_after_loop.PROCESS ON VALUE-REQUEST.FIELD zmmt0013d-zcpxh   MODULE frm_zcpxh.FIELD zmmt0013d-zclass2 MODULE frm_cl2help.FIELD zmmt0013d-zclass1 MODULE frm_cl1help.

MODULE frm_cl2help INPUT.DATA: gt_dynpfields1 TYPE STANDARD TABLE OF dynpread,gs_dynpfields1 TYPE dynpread,gt_return1     TYPE STANDARD TABLE OF ddshretval,gs_return1     TYPE ddshretval,gv_povstepl1   TYPE sy-stepl,gv_index1      TYPE sy-stepl.DATA : gt_systems1    LIKE dynpread OCCURS 0 WITH HEADER LINE.TYPES:BEGIN OF gty_wlms,class TYPE klah-class,kschl TYPE swor-kschl,END OF gty_wlms.DATA:gt_data   TYPE TABLE OF gty_wlms,gv_class  TYPE zmmt0013d-zclass2,gv_classt TYPE zmmt0013d-zclass2t.* 获取本页当前行号CALL FUNCTION 'DYNP_GET_STEPL' "#EC CI_SUBRCIMPORTINGpovstepl        = gv_povstepl1EXCEPTIONSstepl_not_found = 1.* 当前行号 = TC(包括翻页)的首行行号 + 本页当前行号 - 1gv_index1 = tctrl_zmmt0013d-top_line + gv_povstepl1 - 1.CLEAR gt_dynpfields1[].gs_dynpfields1-fieldname = 'ZMMT0013D-ZCLASS2'.gs_dynpfields1-stepl     = gv_index1.APPEND gs_dynpfields1 TO gt_dynpfields1.CLEAR gs_dynpfields1.* 获取屏幕值（以防用户修改后未按回车）CALL FUNCTION 'DYNP_VALUES_READ' "#EC CI_SUBRCEXPORTINGdyname               = sy-repiddynumb               = sy-dynnrtranslate_to_upper   = 'X'TABLESdynpfields           = gt_dynpfields1EXCEPTIONSinvalid_abapworkarea = 1invalid_dynprofield  = 2invalid_dynproname   = 3invalid_dynpronummer = 4invalid_request      = 5no_fielddescription  = 6invalid_parameter    = 7undefind_error       = 8double_conversion    = 9stepl_not_found      = 10OTHERS               = 11.READ TABLE gt_dynpfields1 INTO gs_dynpfields1 INDEX 1.IF sy-subrc = 0.gv_class = gs_dynpfields1-fieldvalue.ENDIF.* 获取值SELECT a~class,b~kschlFROM klah AS aLEFT JOIN swor AS bON  a~clint = b~clintAND b~spras = '1'WHERE a~klart = '001'AND   a~klagr = 'CLASS-03'INTO CORRESPONDING FIELDS OF TABLE @gt_data.IF sy-subrc = 0.SORT gt_data BY class.ENDIF.
* 自定义搜索帮助
*  CLEAR :gt_return1,gs_return1.CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'EXPORTINGretfield        = 'CLASS'
*     dynpprog        = sy-repid
*     dynpnr          = sy-dynnr
*     dynprofield     = 'ZCLASS2'value_org       = 'S'TABLESvalue_tab       = gt_datareturn_tab      = gt_return1EXCEPTIONSparameter_error = 1no_values_found = 2OTHERS          = 3.IF sy-subrc = 0.READ TABLE gt_return1 INTO gs_return1 INDEX 1.IF sy-subrc = 0.
*      zbukrs_zhbblx-bukrs = gs_return1-fieldval.SELECT SINGLE a~kschl                               "#EC CI_SUBRCFROM swor AS aINNER JOIN klah AS bON a~clint = b~clintWHERE b~class = @gs_return1-fieldvalAND   a~spras = '1'INTO @gv_classt.ENDIF.ENDIF.*更新屏幕上已经修改的字段CLEAR: gt_systems1[],gt_systems1.gt_systems1-fieldname = 'ZMMT0013D-ZCLASS2'.gt_systems1-stepl = gv_index1.gt_systems1-fieldvalue = gs_return1-fieldval. "返回的选择值APPEND gt_systems1.gt_systems1-fieldname = 'ZMMT0013D-ZCLASS2T'.gt_systems1-stepl = gv_index1.gt_systems1-fieldvalue = gv_classt.APPEND gt_systems1.CALL FUNCTION 'DYNP_VALUES_UPDATE' "#EC CI_SUBRCEXPORTINGdyname               = sy-repiddynumb               = '0001'TABLESdynpfields           = gt_systems1EXCEPTIONSinvalid_abapworkarea = 1invalid_dynprofield  = 2invalid_dynproname   = 3invalid_dynpronummer = 4invalid_request      = 5no_fielddescription  = 6undefind_error       = 7OTHERS               = 8.IF sy-subrc <> 0.ENDIF.ENDMODULE.

 产品型号搜索帮助，直接添加没有描述

MODULE frm_zcpxh INPUT.TYPES:BEGIN OF gty_wlms1,class TYPE klah-class,
*          kschl TYPE swor-kschl,END OF gty_wlms1.DATA:gt_data1 TYPE TABLE OF gty_wlms1.DATA: gt_return TYPE ddshretval OCCURS 0 .CLEAR:gt_data1,gt_return.
* 获取值SELECT a~classFROM klah AS aWHERE a~class NE '0'AND   a~klart = '001'AND   a~klagr = 'PRD_MODEL'INTO CORRESPONDING FIELDS OF TABLE @gt_data1.IF sy-subrc = 0.SORT gt_data1 BY class.ENDIF.*  "将取到的值通过函数显示在搜索帮助显示框中CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'EXPORTINGretfield         = 'CLASS'dynpprog         = sy-repiddynpnr           = sy-dynnrdynprofield      = 'ZCPXH'value_org        = 'S'callback_program = sy-repidTABLESvalue_tab        = gt_data1return_tab       = gt_returnEXCEPTIONSparameter_error  = 1no_values_found  = 2OTHERS           = 3.IF sy-subrc <> 0.MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.ENDIF.ENDMODULE.