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[转]调用选择屏幕以及获得选择屏幕的操作

2011-09-19 09:46:58| 分类： ABAP屏幕操作 | 标签： |举报 |字号大中小订阅

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在自定义屏幕如何调用选择屏幕呢，通过选择屏幕输入查询条件，然后进行相关的操作。在这里有两个技术难点：
1、如何定义可以调用的选择屏幕、调用选择屏幕；
2、如何捕捉到选择屏幕的操作、选择屏幕的屏幕号；

定义可调用的选择屏幕：
SELECTION-SCREEN  BEGIN  OF  SCREEN  700 .
SELECT-OPTIONS: S_CPTNR FOR  ZTMM0141-CPTNR,
S_MAKTX FOR  ZTMM0141-MAKTX.
SELECTION-SCREEN  END    OF  SCREEN  700 .

调用选择屏幕：
CALL  SELECTION-SCREEN 700  STARTING  AT  15  2  ENDING AT  100  4 .

捕捉选择屏幕的操作：
*----------------------------------------------------------------------*
*  AT SELECTION-SCREEN OUTPUT.
*  在屏幕输出之前处理
*
*----------------------------------------------------------------------*
at selection-screen .
  case  sy-dynnr.                   "对应的是屏幕编号
    when  '0700' .
      if  sy-ucomm = 'CRET' .        "对应的是执行的功能码
        perform  frm_display_history using  1 .   "调用子例程执行相关操作
      endif .
    when  '0800' .
      if  sy-ucomm = 'CRET' .
        perform  frm_display_history using  2 .
      endif .
    when  '0900' .
      if  sy-ucomm = 'CRET' .
        perform  frm_display_history using  3 .
      endif .
  endcase .< xmlnamespace prefix ="o" ns ="urn:schemas-microsoft-com:office:office" />

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