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屏幕逻辑流之字段检查

2011-08-30 12:01:21| 分类： ABAP屏幕操作 | 标签： |举报 |字号大中小订阅

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1. on request(on chain-request)，当字段值发生改变时调用module
2. on input(on chain-input)，当字段值不是初始值时调用module

使用方法：
field g_field1 module check_input on request. "单个字段检查

chain.                                        "对多个字段检查,其中有一个字段改变就执行module.
  field g_field1.
  field g_field2.
  module check_input on chain-request.
endchain.

field g_field1 module check_input on input.   "单个字段检查

chain.                                        "对多个字段检查,其中有一个字段不是初始值就执行module.
  field g_field1.
  field g_field2.
  module check_input on chain-input.
endchain.

3. field g_field1 module check_input on *-input. ",这个字段有属性'*条目'，且字段的首个字符为'*'时，会执行该module.

4. module exit at exit-command. "at exit-command 仅响应类型为'E'(即exit)的按钮

5. process on value-request. "表示有F4事件响应,加上这个事件，F4函数要自己添加，参考(屏幕上时间类型字段的F4帮助)
field time1 module choose_time1.

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