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time calculations

martie
in Calculation Engine (Define Fields)

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I have this problem in two different Dbs now. I have a simple time calculation - finish time - start time. How can I make it NOT calculate until both fields are entered? Currently, I get some huge figure as a result when there is no data in the finish time field. If I add a check on the finish field (IsEmpty or IsValid or <=0, I get 00:00:00.

What I want is for the calculation not to happen until there is a valid finish time entered. Is this possible?

Thank you!

Martie

Case( Length( finish time ), finish time - start time )

  • Author

how clever, how simple, how lovely!

thank you!!!!

Martie

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https://fmforums.com/topic/18350-time-calculations/
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