REUSE_ALV_GRID_DISPLAY ALV 回车事件

REUSE_ALV_GRID_DISPLAY ALV 回车事件

定义：
DATA: GT_EVENT TYPE SLIS_T_EVENT WITH HEADER LINE，
REF_GRID TYPE REF TO CL_GUI_ALV_GRID

调用ALV的时候，加上GT_EVENT：

• event事件
  "slis_ev_caller_exit_at_start事件 调用来获取ALV对象并注册回车事件
  GT_EVENT-NAME = ‘CALLER_EXIT’.
  GT_EVENT-FORM = ‘FM_BUTTON’.
  APPEND GT_EVENT .

  CALL FUNCTION ‘REUSE_ALV_GRID_DISPLAY’
  EXPORTING
  I_CALLBACK_PROGRAM = SY-REPID
  I_CALLBACK_USER_COMMAND = ‘FRM_USER_COMMAND’
  IS_LAYOUT = GS_LAYOUT
  I_CALLBACK_PF_STATUS_SET = ‘FRM_SET_PF_STATUS’
  IT_FIELDCAT = GT_FIELDCAT[]
  I_CALLBACK_TOP_OF_PAGE = ‘FRM_TOP_OF_PAGE’
  IT_EVENTS = GT_EVENT[]
  I_SAVE = ‘A’
  I_GRID_SETTINGS = LS_GRID_SETTINGS
  TABLES
  T_OUTTAB = GT_ALV
  EXCEPTIONS
  PROGRAM_ERROR = 1
  OTHERS = 2.

定义类和方法：
CLASS LCL_EVENT_RECEIVER DEFINITION.
PUBLIC SECTION.
METHODS HANDLE_MODIFY
FOR EVENT DATA_CHANGED_FINISHED OF CL_GUI_ALV_GRID
IMPORTING E_MOD