Sent: Wednesday, May 23, 2012 6:42 PM
我看了一下，当我们在UI上点add button增加新的search criteria之后，是framework做的处理把新的row render出来，application本身不需要任何实现。
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the tag fieldNames ( got from GET_POSSIBLE_FIELDS ) just represent the available Criteria in the drop down list.
why by default only 4 line appear in the UI?
This is done in configuration: only the first 4 line are marked as “Displayed” there.
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click “Add”:
call stack:
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done by framework
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