How to format nested expressions in Set Property Activity from query results?

Jan-Peter Ter Maaten

June 19, 2023 08:12

I'm trying to get a value from a layer's query results. The field to-be-read should be retrieved from a value. Is it possible to do something like this expression and how should it be formatted? Thanks in advance!

=$query1.features[0].attributes.$valueQueryField.results

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  Zack Robison

  June 20, 2023 20:11 Edited

  Yes!  Use brackets to signify a computed property, i.e.

  =$query1.features[0].attributes[$valueQueryField.results]

  You can daisy chain this syntax by the way.

  =$query.features[$forEachFeature.pass].attributes[$valueQueryField.results][$valueSubproperty.results]

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  Jan-Peter Ter Maaten

  June 20, 2023 06:39

  Ah, thanks a lot. I tried various formats with no result, but this format works great!

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