Check, if a variable is empty?

kakuda shared this question 7 years ago
Answered

In Conditional Expressions:


How is it possible to check, if a variable is empty?


Example WHEN (variableName = Empty). In Java, Empty would mean null.


Thanks

Comments (3)

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You have to build the condition WHEN (variable=Empty) and the Empty is the Aaa item inside the Constants tab in the Expression Builder

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Thanks! That works!

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I need to do the same check, but for a file upload within a Data Grid. Is there a way to check if a file upload is empty or not? I've tried "", null, empty, " ", 0, Count=0, etc. and nothing seems to work. Thanks.