Selector mapped value

I have a selector that i need to have its value from my query which is (readitems) I want the values appears in selector to be the header names or my columns name when i tried this i got error and no data appears , {{ Object.keys(readitems.data[0]) }} how to solve please?

Hello @Youssef!

Are you using the query as the data source? If so, the mapped value's data should be accessible to the Selector as properties of a keyword called item:

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Let us know if you need any additional clarification here, @Youssef!