如果当前字段为空，则从另一个字段添加信息 [英] Add info from another field if present field is empty

问题描述

我想在我的报告中有一个字段，如果一个字段为空，则插入来自另一个字段的信息，因为它必须是一个或另一个。


我试过

I would like to have a field in my report whereby if one field is empty, information from another field is inserted as it has to be either one or the other.

I have tried

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推荐答案

告诉你的所作所为如果RefNo为空，该怎么办。

如果有一个有效的RefNo，你还没告诉它该做什么。

What you have done is told it what to do if RefNo is Null.
You haven''t told it what to do if there is a valid RefNo.

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或者更简单地说：

Or, more simply, :

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Phil，可以有多个字段添加或仅限于两个？

Phil, can more than one field be added or is it limited to two?

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