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有时候需要在双击ALV某行时，弹出一个窗口

这里介绍中比较简单的实现方式：FM： REUSE_ALV_POPUP_TO_SELECT

CALL  FUNCTION  ‘REUSE_ALV_POPUP_TO_SELECT’

EXPORTING

i_title                =  ‘凭证明细’                                “弹出的alv标题

i_zebra                =  ‘X’

i_screen_start_column  =  10                                       “ALV起始位置

i_screen_start_line    =  10

i_screen_end_column    =  115

i_screen_end_line      =  15

i_tabname              = space                                     “这里默认是空就OK了

it_fieldcat            = fieldcat[]                                “这里是字段目录

TABLES

t_outtab               = l_it_detial[] .

实例如下：

DATA:l_alvexit   TYPE c.
  DATA:wa_selfield TYPE slis_selfield.
  DATA:li_fieldcat TYPE slis_t_fieldcat_alv.
  DATA:wa_fieldcat TYPE slis_fieldcat_alv.

  wa_fieldcat-fieldname = 'ICON'.
  wa_fieldcat-seltext_l = 'STATUS'.
  wa_fieldcat-outputlen = '6'.
  wa_fieldcat-icon      = 'X'.
  APPEND wa_fieldcat TO li_fieldcat.
  CLEAR wa_fieldcat.

  wa_fieldcat-fieldname = 'AUFNR'.
  wa_fieldcat-seltext_l = '订单号'.
  wa_fieldcat-outputlen = '10'.
  APPEND wa_fieldcat TO li_fieldcat.
  CLEAR wa_fieldcat.

  wa_fieldcat-fieldname = 'ROW'.
  wa_fieldcat-seltext_l = '行号'.
  wa_fieldcat-outputlen = '5'.
  APPEND wa_fieldcat TO li_fieldcat.
  CLEAR wa_fieldcat.

  wa_fieldcat-fieldname = 'MESSAGE'.
  wa_fieldcat-seltext_l = '消息文本'.
  wa_fieldcat-outputlen = '60'.
  APPEND wa_fieldcat TO li_fieldcat.
  CLEAR wa_fieldcat.

  CALL FUNCTION 'REUSE_ALV_POPUP_TO_SELECT'
       EXPORTING
*        I_TITLE                 =
*         I_SELECTION             = 'X'
*        I_ZEBRA                 = ' '
*        I_CHECKBOX_FIELDNAME    =
*        I_CHECKBOX_FIELDNAME    =
         i_tabname               = 'I_MESSAGE'
         it_fieldcat             = li_fieldcat[]
*       IMPORTING
*         ES_SELFIELD             = WA_SELFIELD
*         E_EXIT                  = L_ALVEXIT
       TABLES
         t_outtab                = i_message
       EXCEPTIONS
         program_error           = 1
         OTHERS                  = 2
         .