Check, if a variable is empty?

kakuda shared this question 7 years ago

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In Conditional Expressions:

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

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

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Comments (3)

Victor Conesa ● 7 years ago

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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kakuda ● 7 years ago

Thanks! That works!

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Drew ● 4 years ago

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.

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