ABAP中ALV导出excel表格时有个字段总是少一位，请问是什么原因？如何解决？

http://zhidao.baidu.com/question/248924781.html

这是SAP的一个Bug，FM方式ALV Grid和Class ALV Grid都会出现，但是ALV List好像没有这个BUG。

在以下几个条件满足的时候就会出现这个问题：1.字段对应的域Convers. routine = ALPHA，也就是有前导零的字段，比如供应商号、商品号、客户号等。2.做ALV Fieldcat的时候，没有指定参考表和参考字段。3.列的表头文本(seltext_s等)比实际显示的数据短。 所以解决问题的时候从2、3两点下手即可。 REPORT z_barry_field_loss .TYPE-POOLS: slis.DATA: gd_fieldcat TYPE slis_t_fieldcat_alv.DATA: sla TYPE slis_layout_alv , i_repid LIKE sy-repid , ls_fieldcat TYPE slis_fieldcat_alv.DATA: BEGIN OF itab OCCURS 0, lifnr LIKE lfa1-lifnr , kunnr LIKE kna1-kunnr , matnr LIKE mara-matnr , bukrs LIKE bsik-bukrs , END OF itab. START-OF-SELECTION. itab-lifnr = '0000100047'. itab-kunnr = '0000001006'. itab-bukrs = 'ZB01'. itab-matnr = '000000000001100198'. APPEND itab. CLEAR ls_fieldcat . ls_fieldcat-fieldname = 'LIFNR'. ls_fieldcat-seltext_s = 'LI'. ls_fieldcat-ref_fieldname = 'LIFNR'. "|注释 ls_fieldcat-ref_tabname = 'LFA1'. "| ls_fieldcat-ddictxt = 'S'. APPEND ls_fieldcat TO gd_fieldcat . CLEAR ls_fieldcat . ls_fieldcat-fieldname = 'KUNNR'. ls_fieldcat-seltext_s = 'KU'. ls_fieldcat-ref_fieldname = 'KUNNR'. "|注释 ls_fieldcat-ref_tabname = 'KNA1'. "| APPEND ls_fieldcat TO gd_fieldcat . CLEAR ls_fieldcat . ls_fieldcat-fieldname = 'BUKRS'. ls_fieldcat-seltext_s = 'BU'. APPEND ls_fieldcat TO gd_fieldcat . CLEAR ls_fieldcat . ls_fieldcat-fieldname = 'MATNR'. ls_fieldcat-seltext_s = 'MAT'. ls_fieldcat-ref_fieldname = 'MATNR'. "|注释 ls_fieldcat-ref_tabname = 'MAKT'. "| APPEND ls_fieldcat TO gd_fieldcat . i_repid = sy-repid. CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY' EXPORTING i_callback_program = i_repid it_fieldcat = gd_fieldcat[] i_save = 'A' is_layout = sla i_callback_user_command = 'USER_COMMAND' TABLES t_outtab = itab EXCEPTIONS program_error = 1 OTHERS = 2.